The Gouldian finch can have one of three main head colors: black, red, or yellow. Typically, they also have a black or red face, a yellow underside, and a purple chest. Their faces and rumps are ...

Male house finches are more orange and red with the color concentrated on their ... Purple finches have a bolder face pattern, with two white stripes stretching from their beaks to the nape ...

The females are brown and lightly streaked on their bodies with a plain brownish face. The male purple finch is more of a dark purplish red color. An ornithologist once wrote that the purple finch ...

When red-billed and yellow-billed finches mate, their offspring have orange ... Birds use carotenoid pigments for decorative ...

Similarly, female zebra finches need to hear their species' songs ... findings could open new avenues of research into the role of face-to-face interaction in learning and social bonds.