The species are clearly illustrated in over 154 plates, showing plumage variation between sexes, seasons, and age classes, as well as the upperside and undersid

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The definitive field guide to the rich avifauna of Ecuador. This up-to-date and comprehensive guide to the birds of mainland Ecuador is a valuable resource for

Birds of Central Asia is the first field guide to include the former Soviet republics of Kazakhstan, Kirghizstan, Turkmenistan, Uzbekistan and Tajikistan, along