Photo, picture:
Weisswangengans, die Geschlechter koennen anhand des Gefieders nicht unterschieden werden - (Nonnengans - Foto Weisswangengaense waehrend des Vogelzugs vor dem Vollmond - (M))
Barnacle Goose, the plumage of both sexes looks identical - (Photo Barnacle Geese during the migration in front of the full moon - (M))
Branta leucopsis

Gallery overview