This book is the first ever, comprehensive photographic guide to the identification of all 24 species of hummingbirds to be seen as breeders or vagrants in North America.
For all their startling colors, the speed of hummingbird flight and the often drab coloration of females and immatures make this group especially difficult to deal with in the field. The simple field marks are often poorly lit, hard to spot, or simply not shown by any particular individual under observation. But accurate
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