The National Audubon Society has released their Birds and Climate Change Report. By combining hundreds of thousands of citizen science observations and projections from climate models, Audubon scientists have mapped how birds in the U.S. and Canada will react to changing conditions. They describe it as the broadest and most detailed study of its kind, and the closest thing to a field guide to the future of North American birds.
Of the 588 North American bird species evaluated, 126 are classified as climate endangered because they are projected to lose more than 50 percent of their current range by 2050. Another 188 species are classified as climate threatened and are expected to lose more than 50 percent of their current range by 2080 if global warming continues at its current pace.
You can see a good summary from the New York Times here.