In the April 2008 issue of The Connecticut Warbler, I wrote an article entitled "Connecticut's Next 15 Birds." Thirteen experienced CT birders submitted a list of ten species he/she thought were the most likely to be added to the state's list of avifauna. Only one bird received a vote from all 13 members of the panel: Townsend's Warbler.
Townsend's has been seen in every northeastern state except CT and Vermont. New York, for example, has at least 18 records by itself! Massachusetts has a large handful of records, with three coming in the past 5 years. That includes a stunning male currently being seen in the greater Boston area. Erik Nielsen of Westwood, MA took some fantastic photos of the bird this morning; you can find them HERE.
While most birders think of late autumn/winter as the time to find this species in New England, there are many spring records as well. This species can be confused with Black-throated Green or even Blackburnian Warbler if one is not aware of the possibility. In fact, this Boston bird was initially reported as a Black-throated Green Warbler.
So check out Erik's photos, learn the song (buzzy like BT Green), and be prepared just in case!