|Green Pygmy Goose|
The pygmy geese are a group of very small "perching ducks" in the genus Nettapus which breed in the Old World tropics. They are the smallest of all wildfowl. As the "perching ducks" are a paraphyletic group, they need to be placed elsewhere. The initially assumed relationship with the dabbling duck subfamily Anatinae has been questioned, and it appears they form a lineage in an ancient Gondwanan radiation of waterfowl, within which they are of unclear affinities. An undescribed fossil species from the late Hemphillian (5.0-4.1 mya) of Jalisco, central Mexico, has also been identified from the distal end of a tarsometatarsus. It is only record of the genus in the New World.
There are three extant species in the genus:
- Green Pygmy Goose Nettapus pulchellus of northern Australia and southern New Guinea.
- Cotton Pygmy Goose Nettapus coromandelianus of Southeast Asia.
- African Pygmy Goose Nettapus auritus of sub-Saharan Africa.
Pygmy geese have short bills, rounded heads and short legs. They nest in tree holes.
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- ^ Sraml, M.; Christidis, L.; Easteal, S.; Horn, P. & Collet, C. (1996). "Molecular Relationships Within Australasian Waterfowl (Anseriformes)". Australian Journal of Zoology. 44 (1): 47–58. doi:10.1071/ZO9960047. Cite uses deprecated parameter
- ^ Steadman, D.; Carranza-Castaneda, O. (2006). "Early Pliocene to early Pleistocene birds from central Mexico". Universidad Nacional Autónoma de México, Instituto de Geología and Centro de Geociencias, Publicacion Especial. 4: 61–71. ISBN 970-32-3895-5. Cite uses deprecated parameter
- Madge, Steve; Burn, Hilary (1987). Wildfowl : an identification guide to the ducks, geese and swans of the world. London: Christopher Helm. pp. 190–193. ISBN 0-7470-2201-1. Cite uses deprecated parameter
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