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Duck is the common name for a large number of birds in the Anatidae family. And with over 120 different species, ducks are incredibly diverse and can be found all over the world. Meet some of the ...
I have presented an analysis of the species density of the breeding birds of continental Canada, the United States (excluding Hawaii) and Mexico following the method of Simpson (1964) in his analysis ...
Twelve ancient artifacts or fragmented feather samples recovered from melting alpine ice patches in southern Yukon were analyzed in order to identify the species of birds associated with the ice ...