Dr. Vijay Anand Ismavel MS MCh   cc-by-nc-sa-4.0

Asarcornis scutulata (White Winged Duck) is a species of birds in the family Anatidae. They are listed as endangered by IUCN and in cites appendix i. They rely on flight and drag powered swimming to move around.

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  • URI: http://eol.org/schema/terms/CITES_I
  • Definition: Appendix I lists species that are the most endangered among CITES-listed animals and plants. They are threatened with extinction and CITES prohibits international trade in specimens of these species except when the purpose of the import is not commercial, for instance for scientific research. In these exceptional cases, trade may take place provided it is authorized by the granting of both an import permit and an export permit (or re-export certificate). Article VII of the Convention provides for a number of exemptions to this general prohibition.
  • Source: https://www.speciesplus.net/#/taxon_concepts/9079/legal
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  • URI: https://eol.org/schema/terms/drag_based_swimming
  • Definition: Drag swimmers use a cyclic motion where they push water back in a power stroke, and return their limb forward in the return or recovery stroke. When they push water directly backwards, this moves their body forward, but as they return their limbs to the starting position, they push water forward, which will thus pull them back to some degree, and so opposes the direction that the body is heading. This opposing force is called drag. The return-stroke drag causes drag swimmers to employ different strategies than lift swimmers. Reducing drag on the return stroke is essential for optimizing efficiency.
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EOL has data for 13 attributes, including:

Known occurrences, collected specimens and observations of White-winged duck. View this species on GBIF