In 2007 we had an irruption of Pine Grosbeaks-Pinicola enucleator (yes, I did almost type Pina Colada). Their range is north of Massachusetts but occasionally drift south looking for food. As you can tell from the picture this one, and quite a few of her fellow travelers, were successful in their search in Quabbin Park.
I managed a few dozen shots and in each one she had a crab apple in her mouth. Pretty much non-stop feeders and the tree was picked clean.
I shot this with my old 5D and 300 f/4 combination. Although these are large for finches it it usually was a challenge for me to capture a full frame shot (this is slightly cropped on the sides) of small birds. But these, as with the crossbill I shared earlier this year, were so busy eating that I was able to approach fairly close.