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Anseriform, any of more than 160 species constituting the bird order Anseriformes, which comprises the ducks, geese, and swans (family Anatidae) and the screamers (family Anhimidae). Anseriforms are widely distributed and common in temperate habitats. Most species undertake lengthy seasonal migrations.
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.
Anseriformes. Anseriformes è un ordine di uccelli che comprende circa 180 specie viventi suddivise in tre famiglie: Anhimidae (i 3 kamichi), Anseranatidae (l'oca gazza) e Anatidae, la famiglia più numerosa che comprende oltre 170 specie di uccelli acquatici ( Dendrocygninae, Plectropterinae, Stictonettinae, Nettapodini, Biziurini ...
By Laura Howard. Anseriformes comprises three families, Anhimidae (screamers), Anatidae (geese, swans and ducks), and Anseranatidae (magpie goose), with 48 genera and 161 species. Anseriform taxa are distributed worldwide, except for the Antarctic region.
4 mag 2023 · Anseriformes is a diverse group of waterbirds that includes ducks, geese, and swans. The evolutionary history of this order can be traced back to the Late Cretaceous period, around 70 million years ago. Fossil evidence suggests that the earliest anseriforms were small diving birds with toothed bills similar to those found in modern mergansers.
