Karen Swenson of Henderson, Minnesota, took this photo of a rose-breasted grosbeak missing its upper bill. Migration is a perilous journey. If you're not at the top of your game, it's even tougher. That said, I recall seeing a one-legged chickadee in my yard for two springs. It had survived two of our Minnesota winters. I'd never doubt the bird's ability to survive, but I will keep my fingers crossed for it.