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Yellow-billed Duck/ Anas undulata |
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Yellow-billed Duck/ Anas undulata |
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The Yellow-billed Duck comes from south and east Africa. The one shown above is the South African Yellow-billed Duck (Anas undulata undulata). It is larger and darker than other yellow-billed ducks such as the Yellow-billed Pintail, Yellow-billed Teal and Spotbill. |
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The Yellow-billed Duck's "speculum" (wing window) is said to be green, as it appears from this angle . . . |
. . . but from this angle the speculum appears to show blue (same duck, same time, different angle) | |