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Our beloved Red-tailed Hawk Alisa has a very different appearance now than last year at this time (check the blog posting for Dec. 12, 2009.) As she molted over the summer, her new feathers came in much darker which made me reach for my Brian Wheeler book, Raptors of Western North America. She appears to be an intermediate (rufous) morph Western Red-tail. Some biologists calls these "variants" but whatever the terminology, they are confusing, especially in the field. Then you mix in the Harlan's Hawks that are appearing all over this winter, a darker phase Red-tail from Alaska, and dark Rough-legs, wow! We'll just call her a Red Red-tail.