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The International Ornithological Committee (IOC) recognizes these 174 Anatidae species distributed among 53 genera, 32 of which have only one species. Eight species on the list are extinct; they are marked (E). [1] This list is presented according to the IOC taxonomic sequence and can also be sorted alphabetically by common name and binomial.
The related and extant families, Anhimidae and Anatidae (ducks, geese and swans), contain all the other taxa. [1] A cladistic study of the morphology of waterfowl found that the magpie goose was an early and distinctive offshoot, diverging after screamers and before all other ducks, geese and swans. [2]
The Anatidae are the biological family of water birds that includes ducks, geese, and swans. The family has a cosmopolitan distribution , occurring on all the world's continents except Antarctica. These birds are adapted for swimming , floating on the water surface, and, in some cases, diving in at least shallow water.
The Anserinae are a subfamily in the waterfowl family Anatidae.It includes the swans and the true geese.Under alternative systematical concepts (see e.g., Terres & NAS, 1991), it is split into two subfamilies, the Anserinae contain the geese and the ducks, while the Cygninae contain the swans.
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It provides a set of symbols to represent the pronunciation of Hindi and Urdu in Wikipedia articles, and example words that illustrate the sounds that correspond to them. Integrity must be maintained between the key and the transcriptions that link here; do not change any symbol or value without establishing consensus on the talk page first.
The Anatinae are a subfamily of the family Anatidae (swans, geese and ducks). Its surviving members are the dabbling ducks, which feed mainly at the surface rather than by diving. The other members of the Anatinae are the extinct moa-nalo, a young but highly apomorphic lineage derived from the dabbling ducks.
The nuqta, and the phonological distinction it represents, is sometimes ignored in practice; e.g., क़िला qilā being simply spelled as किला kilā.In the text Dialect Accent Features for Establishing Speaker Identity, Manisha Kulshreshtha and Ramkumar Mathur write, "A few sounds, borrowed from the other languages like Persian and Arabic, are written with a dot (bindu or nuqtā).