Tiny bird found using fake ‘hawk’ calls to scare away threats - Alarm calls create illusion of hawk's presence and scare away predator, researchers say ...
The “chicken hawk” of colonial America, this medium-sized accipiter is a common sight at home bird feeders across the ... Adult: blue-gray upperparts, the crown is darker and contrasts with ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results