Text and research by the California Center for Natural History Fledging Hatching in early spring as fuzzy white balls that weigh about the same as two slices of bread, young redtails (Buteo jamaicensis) grow quickly, making high whistling calls to their … Read more
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Liam O’Brien went from Broadway actor to butterfly observer … and then some.
Sea level rise has a gotcha-from-
behind twin: rising groundwater. It’s already here. And some experts
maintain, we’re not ready for it.
The world was not always so colorful.
Point Reyes National Seashore staff returned from the government shutdown to find a new master of the beach.
Many birds now arrive early — but some, like Wilson’s warblers in the Bay Area, arrive later than they once did.
Can the SFPUC’s new nursery slow the spread of a tree-killing fungus?
How does a butterfly get its green? It’s not pigment.
The global citizen science competition returns April 27-May 3.
Vetch and Argentine ants cooperate, exchanging food for protection.