Here is a nice capture of the male. Nice red color with black wings and the bold white wingbars that cinch the ID.
So what are these White-winged Crossbilss feeding upon? Eastern Hemlock cones. Their beaks are perfectly adapted for getting into the cones and extracting the seeds. I have heard that they are not too tasty for humans, but crossbills love 'em! Look at this happy guy carrying his prize.
And here are the tasty nuggets found inside each cone. Tiny little seeds that the crossbills crave. They have been witnessed feeding on spruce and pine cones, as well, and I have read they also enjoy sweet gum fruit. The seed photo above was stolen from Jim McCormac's blog. He also has a few good posts on crossbills, here and here.
Special thanks to Kevin Carlsen for letting me use some of his photos. If you are in the area of Eagle Creek and like building objects or painting and creating displays, he can use volunteers at the Ornithology Center, due to open sometime this year. The number is 327-BIRD(2473).