NAME FITS HIM - Brown-headed Cowbird is aptly named. I admit a photographic bias toward colorful birds, but Cowbirds are an interesting bird story. They use a nesting strategy called brood parasitism. They lay their eggs in other birds' nests, and the unwitting foster parents do all of the work of incubating and feeding the young cowbird. This is a male Brown-headed Cowbird - so not the actual trespassing egg-layer - but I'm guessing he is in on the tactic.