Common and hoary redpolls are 2 closely related finches of ... Immature: first-year birds resemble an adult female, but they tend to be buffier. Juvenile: brown and streaked, it acquires the ...

This seems to be the year of the single bird. Most of our winter birds travel in flocks, or at least in pairs. This winter, however, I have been seeing single birds of several species. The first ...

Unique, colorful, musical and social, evening and pine grosbeaks are wild birds that tend to be wintertime visitors that we ...

The fall migration continues but is drawing to a close. Large flocks of mixed blackbirds and flocks of robins continue to fly overhead. Ducks and other waterfowl are still being seen on a regular ...

The study of irruption behavior is difficult, because researchers are dealing with an event that happens irregularly.