The “winter” Robins are all about, some in flocks of only Robins; other flocks comprised of Starlings and Cedar Waxwings. Here in Essex County the flocks are traveling from neighborhood to neighborhood, devouring fruits and berries of the winterberry bushes, holly, crabapple, and cedar trees, before moving onto the next smorgasbord.
American Robins and Winterberry
Read more here – Robins in Winter