Adult black-crowned night-heron (Nycticorax nycticorax falklandicus) on Carcass Island in the Falkland Islands, South America

carcass island falkland islands birdwatching wildlife south america ornithology animal behavior natural habitat shorebird calling rocky terrain adult heron coastal environment feeding habits migratory bird avian species conservation ecology south atlantic foraging native wildlife shore habitat yellow lichen vocalization predator nesting habitat loss nocturnal bird indigenous species wetland vocal communication nature exploration biodiversity endangered species natural history bird identification animal observation environmental awareness animal vocalization avian behavior coastal ecology flight patterns bird habitats