The American tree sparrow often occurs in flocks of up to 50 birds. In habitat and behavior, they are much like field sparrows ... groves of small trees. Migration: one of the late-fall and ...

Though it doesn't boast fancy plumage, the grayish-brown, sparrow-like Inyo California ... which degrade the bird's habitat and have been one of the gravest threats to the species. Today, though its ...