Unexpected Aftermath of Killing a Coyote

I just posted about the 7-year-old alpha male coyote father who was heartbreakingly killed by our City’s dog catcher (ACC). That occurrence left a gaping vacancy in his territory. What has been the aftermath in the family so far?

I have the perfect opportunity to observe this situation right here and now in San Francisco — so I am doing just that. A previous case I documented, where the alpha father died of natural causes, resulted in a period of chaos before things settled down to a new normal and a new dynamic — and THAT story actually dovetails into this one, which I’ll get to towards the end of this posting. But there has been no chaos here, fascinatingly.

For a couple of days after the alpha male was killed, things went on as normal: the male didn’t seem to be terribly missed by his mate, afterall, coyotes may wander off for a short day or two when they aren’t missed by their families. After several days, however, I noticed his “widowed” mate, the alpha female, wandering around more and marking more and leaving her own scent — more so than had been her normal routine. Was she putting out beacons to signal him to return? Was she looking for him? She would not know that he had been killed by humans, but she would know that he was missing, and so was his scent.

At first marking (left) and then intense sniffing (right) [these are cropped and enhanced trail camera images]. I put out field cameras along what I had seen as their well-travelled routes, hoping to get a glimpse of the activity.

Over only a couple of days, I was surprised to see that she didn’t become more frantic as might be expected, but rather she calmed down, it seems, into a kind of acceptance mode. Her sniffing seemed to segue from searching for something lost into intense inquisitiveness about something new and unfamiliar: her perfunctory quick glancing sniffs changed to intense and lingering poking.

Her family consisted of herself (alpha mom), her mate (now gone), and a four-year-old “nanny” who seems to be helping out with the unusually large litter of seven pups. The “nanny” continued her habitual behavior of simply passing by now and then — I didn’t notice a change in her behavior. Maybe there has been a change in pup behavior in the aftermath of dad’s disappearance: they don’t appear to be exploring as widely as before the killing: is this a safety precaution due to their dad’s disappearance?

Then, within just four days after that shooting, a newcomer male appeared in the area. And he has remained for the last 6 days. Yikes, that was fast! “Vacant niches” in coyote families are notoriously soon filled, we’ve heard. A male outsider would not have been allowed here if alpha dad were still around. But he’s not around, so he’s not marking and leaving his scent, nor is he physically present to drive an outsider away. It’s incredible how quickly “word spread” about his absence: these animals are obviously quick to read scents and other markers that we humans aren’t even aware of, and to appraise situations.

And alpha mom seems to be more than welcoming him! Maybe she had no choice; maybe survival of her family depends on having an amenable “guy” there. My trail camera caught her hopping all over him and putting her paws on his back — she’s asking him to stay. She didn’t spend much time mourning the loss of her just-lost mate. Coyotes are survivors. They don’t feel sorry for themselves or dwell on the past — coyote life seems to be about business as usual and keeping the show on the road. A territory needs a male to better keep things in order and defendable. Will he take on helping to raise the youngsters, or will he shun them? There’s a lot to find out.

SHE is welcoming him by hopping all over him, and then you can see them trekking together in tandem — all within less than a week of her mate’s having been killed.

Interestingly, I know the new male, an older guy, who came from a not so distant territory within the city where he himself already has a family. Hmmm.

And this is the most interesting and juicy part: that new male is one and the same individual who just at the beginning of this pupping season joined an existing family, filling a vacancy in THAT family caused by the loss of its alpha male to natural causes: old age. Let’s call this new fella Rookie. Apparently Rookie went to town when he joined that family because both the alpha female there AND her two-year-old daughter produced pups this year. I called this “den-sharing”, and think of it as kind of “Rookie’s harem”. So it appears that he already has two mates. And now a third? Does this make him into a sort of super alpha male, or will he be giving up that previous family where he has pups from two females? Or maybe he’s just checking out the new vacancy here and won’t stay?

Background information: We all know that coyotes are famously monogamous and mate for life — this is all I had ever seen in 14 years here in San Francisco with two rare and recent exceptions: the den sharing which involved this particular new male, and a divorce which, strangely, involved a previous life of the killed alpha male. It’s a small world.

AND — to further confuse the issue and expand the exception to “mate for life” and “monogamous”, within a distant fragment of that “den sharing” territory, I had seen yet another lactating female WITH this same male, Rookie. Hmmmm. What’s that about? Is Rookie just a rare exception? We’ll have to wait and see how all of this pans out over time. It’s nothing less than a soap-opera, with cliffhangers and all!

© All information and photos in my postings come from my own original and first-hand documentation work which I am happy to share, with permission and with properly displayed credit©janetkessler/coyoteyipps.com.

It’s A Small World After All

A couple of days ago I visited the Presidio of San Francisco. I haven’t been going there regularly because the ecologist there is already monitoring those coyotes, but I went this time to check on the coyote I’ve labeled “Wired” — she had been radio-collared over a year ago. I heard she had moved in there and kicked out the previous family. This coyote indeed is a “toughy”. She is of special interest to me:  I had watched her wreak havoc on another coyote (who I’ve been documenting since her birth in 2015) and then pursue that coyote throughout the city for 6 months.

Second pair of coyotes in the Park

Initially I did not find the coyote I was looking for. Instead I found another pair of coyotes who looked surprisingly familiar. I’m trying to “place” their relationship among the coyotes I know. I generally can do so by watching visually for nuclear family similarities which I then hope to confirm with DNA analysis results.

I have been collecting DNA extracted from scat samples since 2008, to (among other things) help confirm my observations about relationships and movements throughout the city. The DNA analysis (Ben Sacks, Monica Serrano, et. al., UC Davis, 2020) has already shown that our present SF coyote population of 60 to 100 coyotes all came from just FOUR founding coyotes originating in Mendocino County: It appears that our SF coyote population is indeed inbred as I’ve noted and has not been augmented from the South.

Wired ran by — she’s radio-collared

When he looked at me I couldn’t believe my eyes. Was this Puff?

A couple of days later I returned to the Presidio and this time was rewarded with the appearance of Wired and her new mate! Wired hurried by with the male following close behind — she is obviously the leader of the pair. And then her mate turned around and looked at me. When you come across an old friend you haven’t seen in ages, in an odd place, your response might be, “Wow, it really is a small world!” This has happened to me with coyotes, and it just happened again! I could hardly believe my eyes! This appears to be the coyote I had labeled “Puff”. The label is based on his appearance and is used to differentiate him from his siblings when I write about them.

He was born in the spring of 2017 in a park that is not far off [I don’t state exact locations on this blog]. I’m including several photos of him (above) taken before he dispersed from his birthplace, along with photos of his mother and father on their territory there. I have DNA from these coyotes — I collect it right after it is expelled in most instances, so I know which coyote belongs to which sample. These will be used to confirm my visual/photographed observations. Puff has proved himself to be as much of a toughy as is Wired, having joined a brother to forcefully and viciously drive out a third brother from their birthplace in August of 2018, something I was able to observe. That’s how dispersal works.

It’s great to see Puff now paired up with a like-minded female (two toughies) and they appear to be the reigning alphas of their territory. It’s exciting to see these coyotes’ lives develop beyond their dispersal, something I’ve been able to do with only a handful of them so far. I don’t yet know what their relationship is with the other resident pair. They use some of the same territorial pathways, which I’m sure has significance for determining what the relationship is.

These two pairs may in fact be closely related. I say this, because otherwise, I believe, Wired and Puff would have driven out that second pair, but they have not. The previous Presidio pair along with their offspring were driven out. My continuing DNA study will confirm what their relationship is if I don’t figure it out beforehand.

So far, none of the coyotes I’ve been able to follow after their dispersal from their birthplaces has produced any offspring. Maybe Wired and Puff will produce the first 3rd generation that I’ll be able to keep tabs on! And there’s the possibility for a next generation in one other dispersed female I keep tabs on. We’ll just have to wait and see. Although I’ve watched yet another family through four generation (parents of parents of parents), there, the breeding pairs, one after the other, have remained stable and on their original territory the entire time — in fact for 13 years so far.

More recent movements within the city:

Among the four youngsters I’ve watched grow-up and then been pleasantly-surprised to see in other parks, are two that I’ve already written about, though I may not have used these labels: Scout and Hunter.

In addition to these dispersals, I’ve also seen family members travel large distances within the city to “pay a visit” or “check on” their dispersed youngsters (Maeve, Yote). I’ll soon be writing about a Dad who was just kicked out of his most recent territory and returned to where his youngsters were living. This male and his mate had dispersed from that territory (where the two youngsters remained), rather than the offspring (who did not leave/disperse) — it’s an interesting twist in things. Some family connections seem to be maintained over a great many years and over long distances.

By the way, Wired was in Puff’s birth-territory for awhile when he was still there. I don’t know if she is related to him, but there has been a long-standing association. I’ve also seen two other Presidio coyotes at Puff’s birth-territory. I wonder what the special tie is between these two family groups.

Endnotes: It’s very satisfying to have one’s visual observations confirmed by hard data (DNA). “Science” tends to accept only hard data, not visual data, though I have my photographs which indeed show connections. Incidentally, I do not use gadgets such as radio-collars or tags, which I think are harmful. I recognize coyote facially and can follow them that way, using sequences of photos to study any details. Except in a few instances, the coyotes I document are all labeled based on their appearance so I can readily know who they are.

©  All information and photos in my postings come from my own original and first-hand documentation work which I am happy to share with permission and with properly displayed credit.

A Coyote Visited My Home! by Christina


Great blog! Recently caught a coyote on camera in the Aptos area very close to the house. We love coyotes but also have a cat we are concerned for. She’s sort of an outdoor cat, but we keep her in at night. Now she may have to be restricted to her catio while we’re away.

Our new outdoor game camera picked up the two images attached (one still; one movie) Thursday morning in the wee hours at our home in Aptos.  In the movie, he’s sniffing at our bedroom window.  We used to have a bird feeder attached to that window to entertain our cat but the feeder drew rats, not birds, and while that interested our cat it mostly just upset all of us.  (We kidded about it being a potential owl feeder as we have great horned owls in the oak trees nearby!)  I wonder if the coyote had caught rats here before and came for supper or if he heard us or saw the cat in the window.  We have a water basin in the back yard so when he turns to go around the house we think that may have been where he was headed.  This could explain why we haven’t seen the deer herd in our yard for the past week. They’ve probably distanced themselves from the coyote activity.

Note: Please read Melanie Piazza’s information on catios and how to keep your cat safe: Reversing the CATastrophe.

What Coyotes Do: Deliberately & Consciously Weighing A Risk

We were out on a trek this morning. I say “we” because I am allowed to tag along in the distance sometimes. Not always, and not even often by any means, but sometimes. Today I wasn’t given the “look” which says, “please don’t follow me”. It wasn’t an invitation to come along, but neither was it a “no, you can’t come.” So I tagged as far behind as I could without losing sight of him, as this male coyote made his circuit — or at least for most of it.

This is the last 1/2 minute of a 5+ minute howling session. You can hear *her* faintly in the distance at the end.

The day “for us” began with me finding him in his park howling in response to a siren as dawn broke. His mate responded from far, far off — barely audible, but distinctly her response. I’m sure he knew where she was. I did not, this time. She was obviously tucked away and safe, which gave him one less thing to be concerned about at that moment. So off he went, with me bringing up the rear at about 100 feet. It was very uneventful. We met few people or dogs and then only two at the very end of the trek.

Over hill and dale, within the park, we remained on a long path, he stopping to sniff now and then, and mark sporadically. At one point he pooped — diarrhea — and I wondered at the cause.

We came to the edge of the park, and here he paced along the edge of the road, watching out for traffic. Coyotes trek through areas much larger than their park territories — this is part of their daily behavior. As he began to cross the wide road, one car whizzed past. When this happened, he edged his way slowly and carefully back to the sidewalk, away from the car, where he stood very still and on full alert, with all of his senses focused and with every muscle taught and ready to respond. He had obviously gone through this experience many times and had learned to avoid the risks of quick-moving traffic. When the way was clear, still focused and tense, he crossed the road quickly and directly, and headed towards the long open space in back of the houses lining the street.

There were no fences between those apartments or between their backyards, so it was a perfect coyote-corridor. Here, he continued stopping, sniffing and marking the length of the very long block of connected apartments. He was always on alert. Sometimes he would stop longer at certain spots. Occasionally, nonchalantly, he turned his head, or head and body, just enough so that he could keep an eye on me.  This one knows I’m interested in him. He also knows that I’m not at all interested in getting close — it’s probably confusing for him. Other animals who would be interested in him would either be interested in him as prey, or in messaging him antagonistically. I simply didn’t fit the bill.

After about half an hour of trekking, he came to a fence with a plank missing. The gap was big enough for him to fit through. Should he try it? He spent well over a minute intently assessing the opening. His head would go forward and then he would withdraw it and look up and around in all directions, including at me. He did this maybe about 8 times, and finally, bravery won the day and he went through. I went up and examined the opening: the opening abutted the low support beams under a porch, and these were less than a foot off the ground. The coyote would have had to squeeze tightly and then bend to make it through. There was no chance for me, so I returned to the park, thinking my observations were over for the day.

But, within twenty minutes, who should come trotting up the path to the spot where I had first seen him howl in the morning, but Mr. Coyote himself! He continued along the path, now going in the other direction, somehow avoiding detection, between a couple of runners. He climbed a steep knoll where he then spent a few moments surveyed his domain — this “surveying” is a common coyote activity — and then he continued on his way, over hill and dale, through a field of waist-to-chest-high dense brush. I hurried over his lookout hill to the field below and was able to, at times, see his back as he slithered along, hidden by the bushes. When a dog and walker appeared in the distance, the coyote loitered behind one of these bushes until they had gone, and then he himself hurried along his chosen route and disappeared into a dense thicket, and I knew he had “gone in” for the duration of the day. His trek lasted a little over an hour.

slithering away in waist-to-shoulder high shrubbery

slithering away in waist-to-shoulder high shrubbery

Garbage Patrol

in a parking lot – rejected item – in the parking lot  
retained item – ten minutes of leaning up – peeing/marking

It was dark out, so the photos were blurry, and there was no feel for nighttime or darkness because the camera compensates for the lighting, making it look like daytime. So I experimented and came up with a lighting solution which really does give the viewer the right feeling I had when I took the photos — taken in the dark. Is this how things look in infrared? The tint seems to mask the graininess caused by low light.

Only about 2% of a coyote’s diet, as revealed by scat analysis, is composed of human produced items. Coyotes always prefer their more healthful, natural diet of rodents, berries and vegetation, but sometimes they indulge in “finds” for the change. Coyotes at times will visit picnic areas, trash cans and grocery parking lots where, if our trash is lying around, they will opportunistically pick things up for a special treat. I’ve seen them spit out stuff, so much of it is totally unpalatable to them. But some is enjoyed as you can see here.

On this particular evening, there was debris strewn in this parking lot, and the coyotes noted it as they trekked by. After briefly surveying the surroundings for safety, they did not hesitate to enter the area and went at it! Almost no one was around, and there were few cars — I guess the coyotes noted this, too, and that’s why they entered the parking lot. They wandered around, sniffing things on the ground — almost all of it was rejected and they’d turn their attention to the next piece of trash littering the ground. Finally I saw one of the coyotes pick up a plastic bag and run to the grassy edge of the lot with it. She spent a full ten minutes cleaning up whatever was in the bag. I guess that was enough for her because immediately left the lot after peeing on the spot where she had eaten. I have no idea what she had consumed, but  thought that it could have been the discarded portion of a burrito or sandwich.

leaving – walking down a street – about to cross street
something sumptuous found – keeping an eye on the moon? – rubbing her face
rubbing her back – crossing a street – body rub under some bushes

I followed her down several streets to a neighborhood residence where she went straight to a spot she must have known about, dug something up and nibbled on it. She stayed there eating whatever she found and looking around, and up, to make sure she was safe. She was there over ten minutes. My thought is that, since she went straight to that spot, she may have buried something there. When she finished she licked her snout, then went over to a patch of ground with grass only a few paces away and rubbed the sides of her face on it and then her chin. Hmmm — interesting! Then she got up and walked over to a bush which she used to rub her back against, back and forth: was she actually scratching her back, or was there an oder on the plant which she was trying to absorb? She then crossed the street where she found more shrubbery which she rubbed against and under, again, for a considerable period of time, as if she were wiping on, or wiping off, an odor.  Finally she trotted off, peed again, probably as a message, and was off and out of sight.

Trek, Far and Away, Beginning At Dusk

A few days ago, I was able to keep up with one of the coyotes I know as she began trekked at dusk.

caught a gopher

caught a gopher

She started out in a park where she found a gopher as she lingered, waiting for the day to fade. Then she headed out into a neighborhood street, with plenty of parked cars but no moving traffic. She picked up a couple of mice at the edges of driveways. She didn’t have to search for them — they were just “there”. She couldn’t have seen them. Did she hear them or smell them?  They were small and eaten quickly.

through a neighborhood

through a neighborhood

She then headed, decisively, to wherever she was going. She walked at a fast pace and kept her body high and tall — she was on high alert. She was amazingly tuned-in to her surroundings and the human world she entered as twilight set in. I’ve been told that pet dogs know their owners better than the owners know themselves. This is because they watch you all day! Well, coyotes don’t watch you all day, but they do watch us — from behind the scenes — and they learn our patterns.

middle of street

middle of street

She seemed to know where human perception lay, and that it wasn’t as keen as hers, especially at night. She knew when to stand still, when to duck down or simply walk behind a tree so that only part of her was visible — not enough to make her recognizable. Only one person saw her — amazed — “is that a coyote!” She stuck to the side of the road where she could duck into high grasses or shrubbery if she needed to — and she needed to three times, when three different cars went by. But she also wandered into the middle of the road several times, zigzagging right down the middle of it.

gopher in open space

gopher in open space

Her next stop was way down the street at an abandoned field where she hunted and caught another gopher. It took her only a short time to eat this, crushing the bones so the gopher could be consumed whole. Then she trotted assuredly onto a long church driveway. She seemed to know where she was headed. She moved along the driveway fairly quickly, stopping to sniff and “mark” in a couple of places, before climbing a hill at the edge of the church property. Here she hunted a little, but didn’t find anything.

dashing through a break in the traffic

dashing through a break in the traffic

She was now at the edge of a 6-lane thoroughfare. I thought she would turn back and descend the hill — but she waited there as the traffic whizzed by — she was hidden by the fading daylight and the darkness under dense trees. Then she took off — resolutely — across the street! “Oh, no,” I thought, “I’m going to have to watch her die”. But, as she crossed, the traffic magically parted for her. In fact, I was able to cross during the same brief break in the traffic. Her judgement and timing were excellent.  She got to the other side of the street and climbed the steep grassy embankment and was off down the next winding two-lane road. Please note that it’s much darker than the photos show — the headlights of the cars are on because they need them.

up an embankment through dense brush

up an embankment through dense brush

I exerted myself  to keep up but lagged behind because of the steep hill. When I got to the road she was now on, she was way way ahead — almost invisible in the dusk. I decided to give catching-up a try. I was able to do so because she stopped to examine and pick up some road kill — I think it was part of a squirrel. She carried it off to the side of the road where she was somewhat hidden in the tall grasses. This is when I caught my breath. She spent several minutes eating her find. She then descended from her hiding place and continued on her way, up the two lane road.  Her trajectory as I followed was in a single direction — far and away from where she began.  I wondered where she was ultimately headed. I would have needed night vision goggles to follow any further.

car headlights help me focus

car headlights help me focus

what you can see with night vision goggles

what you can see with night vision goggles

I actually tried on a pair of night vision goggles from my son’s lab. Wow! In a totally blackened room, you can SEE! What you see is a very clear and sharp black and green. I wondered how close these are to coyote night vision. Most of the daytime treks I’ve kept up with lasted anywhere from one to three hours. I’ve always assumed that nighttime trekking was a more substantial endeavor, maybe lasting all night. I wasn’t able to find out how long this one lasted because of my own inability to see. I turned around and went back.

Avoiding Danger: People and Cars

It was dusk when coyotes headed out on their evening trek. They followed the street line at first. Coyotes, like the rest of us, take the path of least resistance. Within minutes, the one in front stopped short, stood very still and listened. Yep, although you could not see them, there were people talking ahead. Better change to a less conspicuous route.

They took a path under a thicket, following the street line, but way in from the street, along the backside of houses and apartments — it was an overgrown green corridor never used by people. Soon they emerged from the overgrowth. The dim dusky light hid them well. Nonetheless, two cars stopped to observe, and commented to me excitedly. Everyone wanted them to be safe.

One of the coyotes headed to the sidewalk and street curb, with the obvious intention of crossing the street. Four years ago, this very coyote was hit by a car and remained lame for over a month: she healed on her own. She learned from her experience and now plans her crossings carefully.

She stood there, hidden on one side by trees and by a parked car. Cars, their headlights on, passed by pretty consistently. When there was no car in view, she used her ears to get a sense of how safe it was, and when a person walked by, she hid behind a tree and was not seen. She kept waiting as cars continued to come by. Obviously, in her experience, this would not be a good time to cross. She turned around and went up the hill and disappeared from my view instead of crossing the street.

The camera has compensated for the dim light in these photos: in fact, the coyotes blended into the background and were difficult to see in the dark.

Mapping Trekking Behavior #2: In An Urban Park & Woods

I’ve been mapping some trekking behavior lately. Here is a second trekking map. The mapping allows me to describe a larger, yet delimited chunk of time and space: where do coyotes go and what do they do? This trek was two hours long and covered an area of about 1/3 mile — as the crow flies — in an urban park with surrounding woods.  There were two coyotes involved.

During this two hour trek I took about 300 photos. I culled these down to 100 — but, I thought, who’s going to look at 100 photos? So I cut them down to 50 photos — but who’s going to look at 50?  Well, I needed 50 because I’m using the photos this time to tell the story — without any additional text except this introduction. Hope it works and is interesting! In summary: the coyotes explored, sniffed, marked, hunted, constantly communicated between themselves, waited for the other, avoided human and dog activity except to watch it at a great distance, played, looked around, hid, spooked at times, were wary of cars, were in the street, drank water, caught a gopher, did not catch a squirrel they went after, had a dog encounter, followed a dog. These coyotes saw 5 dogs with their owners during this trek — two of the dogs & owners did not see the coyotes. The trek included a couple of “dips” into “people” areas.

There are 50 slides, 12 of which are referenced to the 12 points on the map, so you’ll know how they fit into the trek: photos 1, 3, 15, 26, 27, 29, 32, 38, 39, 47 and 50. The lower map may be clicked to enlarge it.

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Trekking Map #2 [click to enlarge]


Mapping Trekking Behavior: In A Residential Neighborhood


I’ve been mapping some trekking behavior. It occurred to me that documenting coyote behavior during a larger, yet delimited, chunk of time and space would increase our understanding of them: where do they go and what do they do?

What is trekking? It involves the several excursions/tours, both short and long, which coyotes engage in every day. They use these outings to hunt, scout, mark, play, watch, etc. When they are not trekking, they may be just hovering around their home base or sleeping!

Keeping coyotes in sight as they trek along is not easy and can’t be done all the time. For one, I often can’t fit through some of the spaces on their routes. Secondly, most of their trekking is done at night — that’s when I sleep, and anyway, it’s impossible to see and even less possible to record with a camera. So, I limit my observations to times when there is enough daylight. Thirdly, in the wild, another critter would go in their direction only if it was a pursuing predator. I have to be careful how I keep them in sight. If I simply hang around in one location appearing disinterested, they ignore me as a fixture, but this is harder to do as they move along — and may put them on alert, altering the behavior I want to observe.

I have seen how they react to humans and dogs going in their direction, and it makes them uneasy:  they look back at them — almost glaring, they poop or mark with urine sometimes while looking at them, they hurry, they are not sure of themselves so they come to a standstill as if they can’t make up their minds how to proceed, they duck out of sight, they watch out of the corners of their eyes. I cut my observations short if I sense any of these signs of discomfort from them.

How much territory do they generally cover? The distance could be as short as 1/3 mile and as long as several miles or longer, as the crow flies. Of course, they do not follow a straight line, they turn back on themselves and wander in all directions, so the amount of territory actually covered is much more than a straight line from point A to point B. They are on the streets and sidewalks, on park paths, they go through thickets and brush, they are on playing fields and golf courses. It’s easy to lose sight of a coyote. I’ve learned to listen for ambient sounds and to use other clues to help me reconnect once I’ve lost sight of them, such as the alarm cries of ravens, squirrels or a red tail hawk, or the sound of a distressed human voice yelling “get outta here!” I’m also aided by patterns of behavior I’ve become familiar with over the years.

Charles has posted excellent observations on rendezvous/reunions engaged in by coyotes before their treks. It’s fairly routine and standard, unless a coyote decides to head off for a little lone activity.

Treks can last half an hour, a couple of hours, or, I’m sure, all night. My observations involve daylight trekking — always delimited by either dusk or dawn when I no longer can see.

The camera time-stamps all my photos, and, of course, the photos show me what is going on and where: it serves as a great notebook, and I don’t need to stop to write anything down! There is immediacy in my first-hand observations and, since I am there, I can pick up on so many things missed by “devices” of any sort. Devices, such as radio collars, cannot give you the full picture. They create one more degree of separation and removal from what you might be able to observe first-hand. They also cause irritations and can cause damage to the animals, including the process of capturing them to put on the collar. I admire the information that can be retrieved from these devices, but, personally, I think they should be used as little as possible.

Here is one of my maps showing time and distance traveled, and context. The photos above go with this map.

Trekking Map #1 [click image to enlarge]

Coyote Behavior: Coyotes in Neighborhoods

Dear Ms Kessler,

I love your website...and have enjoyed your writings on coyotes. I 
was wondering if you would be able to share some information. Most 
of the people-dog incidents seem to be related to meeting a coyote 
in a park area.

Personally, I am happy we have coyotes back in our parks, they are a 
special part of the wild bay area eco-system.

However, we have recently begun having incidents of coyotes moving their 
way through residential areas at night. Also, the established "family" 
of coyotes in the Fremont Older open space area (Cupertino, CA) have 
all but disappeared.

The "prey" at risk in our area in Sunnyvale, are cats. And, yes, I think 
cats should spend the night inside, but I guess it's not quite that easy 
for somepeople. Plus, there are "visiting cats" that kindly people try 
to take care of. Anyway, there have been a couple of incidents with the 
remains of cats being found.

In your research on urban wildlife have you encountered a website 
that might help me understand this migration? I am not saying these 
are the animals from Fremont Older...but it is odd that they seem to 
have disappeared.

The actual sightings of a pair of coyotes have taking place between
11p.m. and 1 a.m.  Perfect time for coyotes to be out doing there thing.
It could be we have just one pair of coyotes that are trying to set up
a territory(?)

However, there have been other sightings over in San Jose (Quito Road  
area) of multiple coyote individuals.

I would like to understand this phenomenon better...can you direct me?

Marcia Bacher
Hi Marcia —
Thank you for writing!!  I’m so glad you like the website! I don’t know your specific situation, but I can address generalities about various issues you raise. I’ve been mapping some coyote trekking behavior, so I’m quite interested in this topic.
Traveling through residential neighborhoods is a normal component of coyote behavior — their “territories” can be quite large. I don’t think you can keep them out of neighborhoods — it is their instinctual nature to trek substantial distances and check things out — they are constantly defining and marking their territories. Coyotes do move/migrate, but I don’t think they would leave Fremont Older unless they were forced out by a more dominant coyote group — in other words, there would still be coyotes there. They might also leave a territory if a larger predator moved into the area, such as a mountain lion. I’m wondering if human harassment, in the form of severe hazing, might also cause them to actually move away vs. having the intended effect of keeping them away from certain areas, influencing the times they are out or making them fearful of humans? — just a thought! Individual coyotes, when they first disperse, seem to have no territories, or they have very fluid territories, and they may wander more into newer areas.  
Coyotes have taken cats, but it is inaccurate to assume that every cat that goes missing is caused by a coyote. Cats were disappearing long before coyotes appeared. It is known that older cats frequently “leave” their homes when they sense their time is up — nature is humane in its own way in taking care of these animals. Raccoons also eat cats, and both coyotes and raccoons will eat cats that have been hit by cars — carrion — which they did not kill.  This being said, small pets do need to be protected.
To dissuade coyotes from doing more than just passing through, it is important not to have any accessible food available. Pet food should never be left out, and garbage should be well secured. All pets, particularly small ones, need to be supervised or kept indoors. Coyotes don’t see these as your pets, but rather as moving prey, like any other gopher, skunk or raccoon. Very high fences work — here is one of the best websites I’ve seen with practical solutions for coexistence: http://wdfw.wa.gov/living/coyotes.html
Why are we even seeing coyotes in parks and neighborhoods? Might they be learning that they are safer in these areas? Please remember that coyotes are shot from helicopters en-masse in “wilder” areas, or they are pursued by hunters. This murdering activity is, for the most part, not allowed in our suburban and urban areas. Coyotes which have discovered this new niche are benefiting from it.
I do know some academics who have studied, or are studying territoriality and migration. Professor Stan Gehrt of Ohio State University is doing amazing studies on coyote territoriality and social structure in the Chicago area where they have 2000 coyotes. Professor Ben Sacks of UC Davis has studied coyote DNA to determine where coyotes emanated from and what kind of habitat they eventually choose. If you would like me to search further, or contact these academics — I would be very happy to do so, since this topic is something I’m working on. I don’t know of any particular websites that go into this.
Sincerely, Janet
Dear Janet-

Thank you again for all your suggestions.
I read the State of Washington’s suggestions…very good.
Went to the Ohio State article about Professor Gehrt’s research in Chicago…
(That was really an eye-opener…WOW!)
I also looked up Professor Sacks published papers on coyotes.
And, after all that, I can only think we (in the South Bay) are at the edge
of “a change” in what we think constitutes our environment.
I have high hopes that it’s something people can adjust their think too,
without over reacting.
Thank you again.
Marcia Bacher

Two Take To A Street

When I passed these two at daybreak, they were already headed somewhere — there was purpose in their gait.  I followed, thinking that this might evolve into an adventure, and it did, sort of. You might ask, why do coyotes trek? The simplest answer is that they need to get from point A to point B. But also, they mark the periphery of their territories, and while doing so they are scouting for what is going on and where food might be. They also go out hunting. Longer treks might be about finding a mate and ultimately dispersal, which is when the pups leave home for good to seek their fortune elsewhere, usually between the ages of one and three. Territories vary vastly in size, but two to six miles is not unusual. That coyotes sometimes take city streets is normal coyote behavior — they usually do this at times of the day/night when few people are out and about since they desperately want to avoid all encounters.

So, today the fellow was in the lead and they were going somewhere — they had a determined pace. I followed at a brisk pace, with spurts of running to keep up. I’ve seen coyotes walk purposefully this way many times on their way to “dog watch”, where they sit on a little knoll in the distance to watch the string of dog walkers, or to get to a hunting spot. Their pace is more casual when they return from such outings.

This time, instead of stopping at one of their little knolls or grassy areas within the park, or taking a park path, they took the street.  They did not enter the street tentatively, but went right to the middle of it and then moved off to the side, alternating between the shrub/tree area set back from the sidewalk, the sidewalk and the street itself as they moved steadily forward. The female looked as though she was an old hand at negotiating this street stuff. She maintained an even pace, with periodic but regular stops to sniff, pee or hunt along the way. When she needed to hide because of startling/loud noises or car activity, she moved slowly and stealthily towards bushes or trees and remained still: if a person had been around to glimpse her, they might have wondered if it was just their imagination because she quietly and suddenly was no longer there. The fellow was different. To me, he looked as though he were new to trekking on the streets. Although he knew how to hide behind things, he was clumsy, he spooked at all sounds and sudden movements — such as cars passing, though there were not many — he ran, darted and his pace was nervous and erratic. He spent more time looking around, whereas she seemed to take it all in as she moved along.

When the  natural grassy/tree strip narrowed itself out of existence  — the setback buildings no longer were set back from the street — rather than continue on the sidewalk, the nervous coyote ran up the middle of the street for several blocks — he was tense, erratic, alert and fast. He disappeared from my view. I could not keep up, and besides, I could only follow one of the coyotes since they were now separated. So I returned and kept an eye on the calmer female as she continued on the sidewalk behind parked cars for a while. She, too, had lost track of the other coyote and no longer looked for him. As she walked, she stopped to lap up water from the curb, hid behind parked cars, sniffed and marked in the street next to a parked car, walked casually by a vacant bus stop, and then finally disappeared behind a large patch of shrubbery through which I could no longer follow.

Trekking Purposefully

I was able to follow two coyotes for about half an hour as they trekked through an urban neighborhood, crossing streets, over dirt paths and sidewalks and through yards, ducking into and out of hidden spaces — their pace and course were very purposeful.  I didn’t see where they ended up, which might have helped me decipher what was going on, but the half-hour I watched clearly demonstrated their very keen awareness: their consciousness and knowingness and understanding.

They knew how to follow the vegetation, logs or areas which might offer some protection. The coyotes sniffed and marked/urinated regularly as the terrain changed or when they veered into new areas. At one point, one coyote stood sentry for about five minutes, insuring the coast was clear in all directions before both took off through an area where dogs often congregate, but there were none today.  But they also crossed into wide open areas such as streets — once stepping out of the way of a car but remaining in the street within about 10 feet of the car as it passed. Their awareness was keen for everything except cars.

These coyotes were not just meandering around or hunting. They had a plan — a plan they had worked out. They knew exactly what they were doing and where they were headed.  How did they know this, and how did they both know this? And how did they communicate this to each other?  I have seen coyotes head out in this manner to certain lookout points in order to observe dogs and walkers from the distance — it is very purposeful behavior. But this time, these two disappeared from the main dog walking areas, so that could not have been their motive. Perhaps they had recently found a field full of gophers which they wanted to revisit?

Anyway, the point is that coyotes can be very purposeful. They appear to be able to work out a plan and carry it out and communicate this, and deal with unforeseen interruptions along the way yet continue their plan. For instance, at one point a man saw them and threw stones at them. The coyotes veered off the path and circled around to avoid him — but they then continued in the direction in which they were originally headed. I have seen lions communicate hunting strategy and carry it out. The animals can communicate very effectively in subtle ways that we humans cannot pick up on. We humans aren’t quite smart enough to figure it out! We like to measure animal intelligence against our own — for instance, by how many word/symbols a chimp can manipulate. Wow — they can learn our language! Yet we haven’t been able to learn or decipher theirs!

Walking A Log

Coyotes seem to enjoy stepping up onto a log to walk its length before hopping off to continue on a trek.  There seems to be no purpose in doing this except that it’s fun — and maybe it’s a tiny bit more challenging than remaining on the ground.


The coyote began tunneling under the fence, but then backed up and stood up high to check if the coast was clear on all fronts. It was, so he then slithered effortlessly through the six inch opening under the fence: head down, through the opening on his belly, and up again on the other side, bending as agilely as a snake. He was obviously not in a hurry, not going anywhere in particular it seems, because he lingered on the other side of fence where he poked around for a while before casually trotting on.

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