All of the 6 Cackling Geese I found that day were of the common subspecies of Cackling Goose we expect here in the NYC/LI area, which would be the B. h. hutchinsii – Richardson’s.
|Both are Cackling Geese; note the color variation on the back as well as the head.
If the Bill and Head pass the first two indicators above, pay attention to the size and general appearance. Ask yourself these questions. (A) Does the Cackling candidate have a shorter neck than the nearby white-cheeked geese? (B) Does the legs look shorter than the nearby white-cheeked geese?
|Cackling above with "white-cheeked Goose (presumably Canada) below.
Tags: Cackling Goose, Van Cortlandt Park, Bronx