1/6/2024 0 Comments Flock of ducksThe bill is usually broad and contains serrated pectens, which are particularly well defined in the filter-feeding species. The body shape of diving ducks varies somewhat from this in being more rounded. The overall body plan of ducks is elongated and broad, and they are also relatively long-necked, albeit not as long-necked as the geese and swans. The pink-eared duck is sometimes included as a true duck either in the tribe Anatini or the tribe Malacorhynchini, and other times is included with the shelducks in the tribe Tadornini. The torrent duck is generally included in the subfamily Anserinae in the monotypic tribe Merganettini, but is sometimes included in the tribe Tadornini. The perching ducks make up in the tribe Cairinini in the subfamily Anserinae in some classifications, while that tribe is eliminated in other classifications and its members assigned to the tribe Anatini. The shelducks make up the tribe Tadornini in the family Anserinae in some classifications, and their own subfamily, Tadorninae, in others, while the steamer ducks are either placed in the family Anserinae in the tribe Tachyerini or lumped with the shelducks in the tribe Tadorini. The freckled duck of Australia is either the sole member of the tribe Stictonettini in the subfamily Anserinae, or in its own family, the Stictonettinae. The whistling ducks are assigned either to a tribe (Dendrocygnini) in the subfamily Anatinae or the subfamily Anserinae, or to their own subfamily (Dendrocygninae) or family (Dendrocyganidae). Ī number of other species called ducks are not considered to be 'true ducks', and are typically placed in other subfamilies or tribes. The tribe Oxyurini contains the 'stifftails', diving ducks notable for their small size and stiff, upright tails. The 'sea ducks' of the tribe Mergini are diving ducks which specialise on fish and shellfish and spend a majority of their lives in saltwater. The 'diving ducks', also named for their primary feeding method, make up the tribe Aythyini. The largest of these, the Anatini, contains the 'dabbling' or 'river' ducks – named for their method of feeding primarily at the surface of fresh water. In most modern classifications, the so-called 'true ducks' belong to the subfamily Anatinae, which is further split into a varying number of tribes. The significant level of hybridisation that occurs among wild ducks complicates efforts to tease apart the relationships between various species. The number of suggested subfamilies containing ducks ranges from two to five. Some base their decisions on morphological characteristics, others on shared behaviours or genetic studies. The number and composition of these subfamilies and tribes is the cause of considerable disagreement among taxonomists. Within the family, ducks are split into a variety of subfamilies and 'tribes'. All except the screamers belong to the biological family Anatidae. TaxonomyĪll 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. Latin anas "duck", Lithuanian ántis 'duck', Ancient Greek νῆσσα/ νῆττα ( nēssa/ nētta) 'duck', and Sanskrit ātí 'water bird', among others.Ī duckling is a young duck in downy plumage or baby duck, but in the food trade a young domestic duck which has just reached adult size and bulk and its meat is still fully tender, is sometimes labelled as a duckling.Ī male is called a drake and the female is called a duck, or in ornithology a hen. The word ened/ ænid was inherited from Proto-Indo-European cf. Other Germanic languages still have similar words for duck, for example, Dutch eend, German Ente and Norwegian and. This word replaced Old English ened/ ænid 'duck', possibly to avoid confusion with other words, like ende 'end' with similar forms. Pacific black duck displaying the characteristic upending "duck"
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