Andean hummingbirds

On the Evolution and Diversification of Andean Hummingbirds
At first look, the harsh physical conditions of the Andes should impose serious physiological constraints on hummingbirds, but instead, …
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An apparent hybrid Heliodoxa hummingbird from the West Andes of Colombia
Details and photographs are presented of an individual mistnetted in the West Andes of Colombia in 1997, which seems possibly to …
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An apparent hybrid Heliodoxa hummingbird from the West Andes of Colombia