Cackling Goose (right) - form uncertain, Turner's Fall power canal, Franklin Co., MA. December 2nd, 2010.
Finally had a chance to get a bit closer to one of the two Cackling Geese coming into the power canal for most of this week. This is the darker of the two to the point where I'd hesitate to call it a straight forward Richardson's (B. h. hutchinsii). The overall cast to the upperparts is quite brown rather than cold gray and the breast is quite dark with variable markings across the breast sides. Not really sure what to make of of it.