Keywords: 2009-0628-Ethiopia-LakeTana-DendBico-026.jpg en A group of White-faced whistling ducks Dendrocygna viduata in flight at outlet field of Blue Nile / Lake Tana in Bahir Dar Ethiopia Own photographing in Bahir Dar Ethiopia Veli Pohjonen 2009-06-28 Own file Dendrocygna viduata Birds of Ethiopia Dendrocygna in flight Lake Tana |