Adult male bufflehead (Bucephala albeola) in breeding plumage on the wing over the Yellowstone River in Yellowstone National Park, Wyoming, USA.

1 adult animals adult animal animal theme animal themes animals bucephala albeola bufflehead birds bird flight fly flying hayden valley horizontal horizontals in flight in the wild landscape males male national parks national park no one no people no person no body no one nobody np nps one animal one reflection reflections reflective river rivers sea bird sea birds seabird seabirds water wild animal wild animals wildlife wild yellowstone national park yellowstone yellowstone river