They dive bomb the feeder with their huge blue wings fully extended ... This is why ground up feathers turn brown. Once the nanostructures are destroyed, you see the bird's true colors. This is also ...

Why do birds lay blue eggs? Well ... House finches are brown birds with grayish wings and conical bills. Adult male house ...

These birds have large brown rails, measuring about 50 centimeters long, with strong, tapered bills, sturdy legs, and reduced wings ... They have blue-coppery green plumage and a large red ...

Wrens are a tiny, rusty-brown bird, smaller than a blue tit. They often cock their ... bird's head), some dark bars and pale spots on short wings. They have a fairly long, thin, downcurved beak ...