variable oystercatcher haematopus unicolor searching for food.

alga algae animal animals beach beaches biodiversity bird birds birdwatch black coast coastal coastline coasts color colour endemic fauna feed feeding food haematopus island life littoral natural nature new oban oceania ornithology oystercatcher oystercatchers pango rakiura search searching shore shoreline steward tai torea unicolor variable vertebrate vertebrates wader wild wildlife zealand zoology