Adults have characteristic red cap or “poll.” Polytypic. Length 5.3". The common is generally a relatively small, streaked finch with a ... the differences in bill size and shape, the presence ...

Both species have stunning red and brown plumage which means that ... One of the differences between house finches and purple ...

A medium-size passerine with a sharply pointed ... One of the most abundant birds in North America, the red-winged’s count was estimated at 190 million in the mid-1970s. Populations are stable.