Spotted a flock (maybe 12 birds) that I could only identify as white-winged crossbills. However, Peterson's indicates a range much further north than Cape Cod. They were picking at something in my shell driveway. We have a lot of pines and it has rained recently so thought that they may be getting pine seed. They were too small to be Pine Grosbeaks and the markings didn't quite match.
The best match was for the attached picture so I'm going with white-winged crossbill until someone proves that's not possible
