A reader notices more fox squirrels and less native western grays.
![western gray squirrel](https://baynature.org/wp-content/uploads/2019/05/graysquirrel-150x150.jpg)
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A reader notices more fox squirrels and less native western grays.
How long do hummingbird parents take care of their young?
Most coyotes won’t stay within the Presidio’s relatively safe confines.
Liam O’Brien went from Broadway actor to butterfly observer … and then some.
The global citizen science competition returns April 27-May 3.
Residents and advocates turn to the challenge of keeping it welcome.
What are some green things to see in nature in the Bay Area?
San Francisco tries to change the conditions that once made it famous for butterfly extinction
Ospreys have made a spectacular recovery from chemical pollution, guns and traps, thanks to many dedicated conservationists and an amazing ability to thrive in close quarters with humans.
In a dark year, citizen science can shine a light on the natural world — and on humanity.