Adult trumpeter swans (Cygnus buccinator) on the Yellowstone River in Yellowstone National Park, Wyoming, USA.

2 adult animal adult animals animal theme animal themes animals bird birds cygnus buccinator hayden valley horizontal horizontals in the wild landscape national parks national park no one no people no person no body no one nobody np nps pair river rivers swan swans sea bird sea birds seabird seabirds trumpeter swan take off taking flight taking off trumpeter swans two animals two water wild animal wild animals wildlife wild yellowstone yellowstone national park yellowstone river