Among the many color variations in birds, those with bright yellow chests stand out as some of the most striking. ・Scientific ...

Male Galápagos yellow warblers appear to be shifting their behavior and adjusting their calls in response to the din of ...

Generally shy and elusive, the yellow-billed cuckoo can be easily overlooked. Its calls are usually loud and often provide the best evidence to the presence of the bird. It favors eating ...

The great crested has a darker gray face and breast; olive wash on sides of breast; broad white edge to innermost secondary; all-rufous inner webs of tail feathers; orange-yellow mouth lining ...

The yellow-billed cuckoo depends on healthy streamside ... was common from the shores of Lake Washington in Seattle to the mouth of the Colorado River. The cuckoo is a visually striking bird whose ...

The yellow-billed cuckoo is sometimes called the "rain crow" because its song is often heard just before thunderstorms or summer showers. But this rare bird raises its voice less and less often in ...