Main Ref. | van der Have, T.M., G.O. Keijl, J. Mansoori and V.V. Morozov, 2002 |
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Remarks | Non-breeding individuals inhabit swamps, lakes, reservoirs, coastal lagoons and estuaries. Feeds grass, on the roots, shoots, leaves, stems, seed heads and fruits of other herbaceous marsh vegetation, aquatic plants, and agricultural grain and potatoes (Ref. 107894). |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrate | |
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Substrate Ref. | |
Special habitats | |
Special habitats Ref. |
Ref. | |
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Associations | |
Associated with | |
Association remarks | |
Parasitism |
Feeding type | mainly plants/detritus (troph. 2-2.19) |
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Feeding type Ref. | Birdlife International, 2016 |
Feeding habit | |
Feeding habit Ref. |
Estimation method | original sample | unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | |||||
From individual food items | 2.00 | 0.00 | Trophic level and s.e. inferred from exclusive plant/detritus food items. | ||
Ref. |