A female house finch forages near the Hay Barn at UC Santa Cruz. House finches are common from coast to coast today and are familiar visitors to backyard feeders. These birds are native to the ...

I was fortunate enough to have a pair of purple finches nest near me, allowing me to observe their courtship ritual for the first time. The male sang incessantly from a tree ...

Black Gouldian finch family: male, female, and juveniles. This image accompanied the report, "Genetic Incompatibility Drives Sex Allocation and Maternal Investment in a Polymorphic Finch," by S.

She lacks the distinct pale eyebrow found on the male. Identifying the male and female house from other Carpodacus finches requires care. The male house differs from the male purple finch not only ...

I am seeing just a few purple finches at the feeders now. Last year, over a dozen were here on many days in January. Some may migrate to the south […] ...

Female finches tend to mate with males that have the same size beaks. These factors together can add to the development of new species. The Grants return each year to Daphne Major to observe and ...

The paper M. Gazda et al., “A genetic mechanism for sexual dichromatism in birds,” Science, 368:1270–74, 2020. Male red siskins (Spinus cucullatus), a species of finch, flaunt orange-red bellies and ...