The Black-and-white Warbler is in my opinion one of the most striking warbler species in North America. They creep along the trunks of trees like nuthatches, feeding on insects. Unusually aggressive for a warbler, they will ferociously attack other birds that enter their territory. Some of these birds will stay and breed in Massachusetts, but not this particular bird. This male was part of a major coastal fallout of migrants on this particular day.
May 6, 2012