The Crossbill Story, Part 5: by Tom Hahn: We left off last time with the swarm of Type 2s (and a few Type 4s) breeding in the winter/spring of 1989 using the big ponderosa cone Read More| FINCH RESEARCH NETWORK
by Caleb Centanni and Matthew Young: How do you find a crossbill in western North America? Well, you have to know what’s on the menu. And, like a restaurant, if you want to know what’s Read More| FINCH RESEARCH NETWORK