a drake canvasback duck, aythya valisineria, swimming on a pond at slimbridge wetland wildlife reserve.

animal aquatic autumn avian aythya beak beautiful beauty bird birdwatching brown canvasback conservation diving drake duck environment feather feathers focus lake male natural nature one organism ornithology outdoor outdoors people photography plumage pond reserve selective slimbridge species swimming valisineria water waterbird waterfowl wetland wetlands wildlife wing wings