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The avian family Anatidae, commonly called waterfowl, comprise the ducks, geese, and swans. The International Ornithological Committee (IOC) recognizes these 174 Anatidae species distributed among 53 genera, 32 of which have only one species.
While shortcomings certainly occur in Livezey's analysis, [citation needed] mtDNA is an unreliable source for phylogenetic information in many waterfowl (especially dabbling ducks) due to their ability to produce fertile hybrids, [2] in rare cases possibly even beyond the level of genus (see for example the "Barbary duck").
Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans. Most modern species in the ...
The order Anseriformes contains about 150 species of bird in three families: the Anhimidae (the screamers), Anseranatidae (the Magpie-goose), and the Anatidae, which includes over 140 species of waterfowl, among them the ducks, geese, and swans.
Laysan duck: Anas laysanensis: 500-680 [21] CR [21] [21] No total population estimate is given due to the birds rarity. [21] Bernier's teal: Anas bernieri: 630-1,900 [22] EN [22] [23] Total population is not given. This estimate for mature individuals is based on multiple counts over the years. [22] Blue duck: Hymenolaimus malacorhynchos: 1,200 ...
North American Waterfowl Management Plan This page was last edited on 18 March 2023, at 03:13 (UTC). Text is available under the Creative Commons Attribution ...