American robins seem to be everywhere this winter and in large flocks. We normally get some robins along the coast in winter and they breed in Houston. But this year, there seems to be unprecedented numbers along the coast, at least with respect to recent history. Why are there so many?
American robins range over the entire U.S. throughout the year and they are a hearty bird that can withstand quite cold temperatures. But during the winter, they become nomadic and will move in response to food resources.