Feathers

Conservation biologist Hanson () may be the first to consider feathers in many contexts: paleontology, evolution, physiology, anatomy, aerodynamics, fashion, culture, literature, and history. In this enjoyable, wide-ranging, and well-researched book, Hanson explains the mechanisms whereby feathers keep birds cool or warm; the complex—at times extravagant—role feathers play in wild bird courtship; the controversies among scientists as to how and why feathers evolved; feather forensics, useful in crime and aircraft crash investigations; the millinery trade (feathers as fashion); and the modern use of feathers and the dynamics of the bedding and clothing industries they support. Useful appendixes include heavily annotated diagrams of different feather types and a brief list of major conservation associations. Highly recommended for birders and science buffs.