Canvasback, Aythya valisineria, male, eating Gizzard Shad, Dorosoma cepedianum, Detroit River, Michigan

Filename: Canvasback_20110109-161326_DSC6425.jpg
Copyright: ©David Stimac
Image Size: 4288x2848 / 4.7MB; Canvasback Aythya valisineria male eating feed feeding fish winter competition compete non-native introduced invasive species Mute Swan Cygnus olor Gizzard Shad Dorosoma cepedianum Detroit River Michigan
Contained in galleries: Waterfowl Archive