Spoon-billed Sandpiper bird

spoonbilled sandpiper bird shore coastal tidal mudflat estuary small rare endangered migration wader wings tail flight beak spoon shaped plumage feathers feeding insectivore crustaceans worms algae aquatic habitat shoreline mud sand stones nesting eggs chicks vocalization call song alert foraging behavior stealth camouflage conservation wildlife birdwatching nature observation ecosystem biodiversity survival wetland intertidal bird photography habitat study migratory species tidal flat ecology