Àdàkọ:POTD/2007-04-25
| Àwòrán Ọjọ́ Òní | |
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A Black-bellied Whistling Duck (Dendrocygna autumnalis) in mid-flight. This species of whistling duck breeds in the southernmost United States and tropical Central and South America. As the name implies, these are noisy birds with a clear whistling waa-chooo call. Photo credit: Alan D. Wilson |