black-crowned night herons sparring

action aggression aggressive animal avian beak behavior bird birds black black-crowned body close closeup colorado colorful confrontation creek crowned disagreement dispute dusk excited excitement eye feather feathers feet fighting foot full habitat heron herons jump jumping natural nature night nycticorax open outdoor outdoors plumage pond red reeds rocks shorebird shot sparring stream territorial water waterbird waterfowl wetland wild wildlife wing wings