Purple finches are a deep cranberry or raspberry color on most of their body. Male house finches are more orange and red with ...

Natural selection at its most powerful winnowed certain finches harshly during a severe drought in 1977. That year, the vegetation withered. Seeds of all kinds were scarce. The small, soft ones ...

The brown body has distinct, blurry streaking above and below. She lacks the distinct pale eyebrow found on the male. Identifying the male and female house from other Carpodacus finches requires care.

There are now at least 13 species of finches on the Galapagos Islands, each filling a different niche on different islands. All of them evolved from one ancestral species, which colonized the ...