two pied billed grebes swimming in calm water

american animal animalia aves avian background beautiful billed bird blue california calm carolina chordata cute dabchick devildiver dipper divedapper environment grebe grebes helldiver lake marsh nature ornithology park pied piedbill piedbilled podiceps podicipedidae podicipediformes podilymbus pond reflection small southern sunny swimming thickbilled two water waterfowl wetland white wild wildlife witch