Adult Magellanic oystercatchers (Haematopus leucopodus) on Carcass Island in the Falkland Islands

magellanic oystercatcher haematopus leucopodus carcass island rocky shore bird interaction wildlife breeding season yellow lichen coastal habitat natural behavior avian display shorebirds falkland islands adult birds ocean environment feathers ecosystem birdwatching animal nesting time pair bonding biodiversity marine life ecology interactions rocks observation color contrast species ornithology couples seabirds habitats