Hummingbirds of North America, Paperback/Roger Tory Peterson - Houghton Mifflin

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Covering 31 North American species, with more than 250 color photos and 33 maps, this is the most comprehensive field guide to hummingbirds.
Detailed range maps show breeding, non-breeding, and year-round distribution, migration routes, and records outside expected areas of occurrence..
Species accounts provide in-depth information on plumage, molt, songs and calls, wing sounds, similar species, behavior, habitat, distribution, taxonomy, and conservation concerns.
The 31 color plates illustrate 28 species, 7 hybrid combinations, 3 forms of albinism, and 4 species of sphinx moths often mistaken for hummingbirds.
IntroducTory chapters cover the natural hisTory of hummingbirds, ways to attract and feed them, and major hot spots in the United States and Canada for observing these fascinating birds.
Covering 31 North American species, with more than 250 color photos and 33 maps, this is the most comprehensive field guide to hummingbirds