The Galápagos yellow warblers on the more populous island of Santa Cruz also increased the duration of their song when ...

Seed eaters like cardinals will also flock to the color yellow since it is associated with sunflowers. For a bird, the ...

Now, research has revealed these stunning birds are also sending secret color signals that are invisible ... appearing bright green or yellow-green, scientists reported in a new study published ...

The striking black-and-yellow western tanager ... In southeastern Arizona, beware of confusing the western with the flame-­colored tanager, which has 2 white wing bars, a striped red-and-black ...

Juvenile has milky grayish-colored iris ... While monotypic, birds in the south average smaller and tend to show bare dark grayish skin below eye (similar in shape to the yellow skin on yellow ...