Identification Guide to North American Birds. Part II: Anatidae to Alcidae

A compendium of information on identifying, ageing, and sexing 310 species and 276 subspecies of waterbirds, diurnal raptors, and gallinaceous birds in the hand. While of primary utility to banders, the wealth of information is of interest to both birdwatchers and ornithologists. Based heavily on field work and specimen examination. Front material describes and illustrates techniques for identifying, ageing, and sexing birds