Category: Ecosystem

Featured Videos of the Month: June, a Visual Essay

Mountain lion on the trail

June was a visually exciting month on the trail. A mountain lion visited a week ago—he stayed for a couple of days before moving on. There’s a new bobcat on the trail he sports a beautiful dark coat. And, our resident coyote, 09M, continues to make his mark. Mountain lion A male mountain lion visited […]

City Coyote Moves to the Suburbs

Coyotes 09M and mate

I used to have mixed feelings about coyotes. When I was a child late at night, I loved drifting off to the howls, barks and yips from coyotes—their vocalizations added depth to my sleep. While I felt in awe of coyotes, at the same time I was afraid of them. I grew up hearing stories […]

Rat Poisons Aren’t Selective

San Mateo, California is an affluent, suburban community where residents enjoy mild weather and amenities such as up-scale restaurants and specialty shops. In addition to people, common rats also enjoy living the good life here. They’ve adapted well to the near-perfect climate all year round and the gourmet food that is just a short scurry […]

Bobcats and Feral Cats on Patrol

“Cats are cats” was the response from my zoologist friend as we compared how bobcats and feral cats select, patrol and live in their ranges. Thanks to our trail cameras we have hundreds of 20 second videos to watch—superb vignettes of the resident bobcats on patrol in the canyon. Like all felids, bobcats and feral […]

Predators Scent Mark a Popular Spot on the Trail

Predators including bobcats, mountain lions and coyotes who don’t want to share resources as well as those who do, are adept at communicating their intentions through scent marking—to their own as well as other species. And often, they scent mark on top of each other’s mark. It’s not always in the best interests for predators […]

A Feast for Bobcats and Coyotes

Back view of a bobcat at camera #2. Photo by Marilyn Krieger

At first it didn’t make sense. It took a little sleuthing for us to figure out what had changed.  For the last few months, camera #2 spied on deer, rabbits, possums and an occasional coyote. It was predictable—I pretty much knew what critters would make regular appearances at night. Something changed a few weeks ago. […]