Sometimes Pennsylvania gets these early movements of winter finches and then little else for the rest of winter. It's possible they'll be around for some time. All were observed at Hawk Mountain Sanctuary in late November. Evening grosbeaks have been reported throughout the state. These birds move south of their of native range, but only infrequently, in their quest for more or better food.
Crossbills are the least common and feed almost exclusively on cones.
Redpolls seem to prefer birch and aspen seeds.