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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 ...
Alternatively, [14] the Anatidae may be considered to consist of three subfamilies (ducks, geese, and swans, essentially) which contain the groups as presented here as tribes, with the swans separated as subfamily Cygninae, the goose subfamily Anserinae also containing the whistling ducks, and the Anatinae containing all other clades.
All ducks belong to the biological order Anseriformes, a group that contains the ducks, geese and swans, as well as the screamers, and the magpie goose. [5] All except the screamers belong to the biological family Anatidae. [5] Within the family, ducks are split into a variety of subfamilies and 'tribes'.
Male and female yellow-billed ducks have a statistically significant difference in life spans. Male ducks live for 4 years and 4 months on average while female ducks only live for just over 3 years. As such the difference in survival rate is statistically significant as well. 79% of males survive any given year while only 72% of females do.
Pacific black ducks, one of the dabbling ducks, feeding in a wetland The loss of wetlands has impacted waterbirds and is driving their extinction in regions where wetlands are polluted. Specifically, in China , 33% of wetlands were lost between 1978 and 2008, which is the primary breeding ground for China's waterbird species such as the Baer's ...
The red-billed streamertail is the national bird of Jamaica. This is a list of the bird species recorded in Jamaica. The avifauna of Jamaica included a total of 332 species as of July 2022, according to Bird Checklists of the World. Of them, 28 are endemic, 19 have been introduced by humans, and 159 are rare or accidental. Another species (great-tailed grackle) is concentrated in one area and ...
The American black duck (Anas rubripes) is a large dabbling duck in the family Anatidae.It was described by William Brewster in 1902. It is the heaviest species in the genus Anas, weighing 720–1,640 g (1.59–3.62 lb) on average and measuring 54–59 cm (21–23 in) in length with an 88–95 cm (35–37 in) wingspan.
The white-backed duck (Thalassornis leuconotus) is a waterbird of the family Anatidae.It is distinct from all other ducks, but most closely related to the whistling ducks in the subfamily Dendrocygninae, though also showing some similarities to the stiff-tailed ducks in the subfamily Oxyurinae.
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