On top, the bird has a brown helmet-like spot that breaks the contrast between the yellow body and the comically proportioned scarlet beak. Whether it’s sitting on a tree branch or in flight ...

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

The small brown bird weighs around 16 grams (roughly half an ounce) and has black and yellow bands along with a large beak. The finding, which was reported in the science journal Nature ...