Researchers recently discovered that traffic noise may be causing male Galápagos yellow warblers to behave more aggressively ...

Audubon’s Oriole is a striking bird with a yellow body and a jet-black head, wings, and tail. Unlike most orioles, both males ...

Its calls are usually loud and often provide the best evidence to the presence of the bird ... The yellow-billed cuckoo has a slender body, a long tail, and rounded wings. Adults have grayish ...

Monotypic. Length 5.5". The bright yellow spectacles, throat, and breast of this vireo are distinctive. Its wings are dark gray, with 2 bold, white wing bars. The crown and back are olive ...