PetsfromThe Mercury News4 days agoWhy is a Walnut Creek Steller's jay doing bird impersonations?Steller's jays mimic hawk calls to scare competitors; hummingbird feeder surges come from resident and migrating hummers; dogs may retain lifelong toy‑sucking habits.
Petsfromwww.mercurynews.com4 days agoWhy is a Walnut Creek Steller's jay doing bird impersonations?Steller's jays mimic hawk calls to frighten other animals and secure food sources for themselves.