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Waders or shorebirds are birds of the order Charadriiformes commonly found wading along shorelines and mudflats in order to forage for food crawling or burrowing in the mud and sand, usually small arthropods such as aquatic insects or crustaceans.... Wikipedia
Mass: Red knot: 4.8 oz, Dunlin: 1.8 oz, Sanderling: 1.8 oz, and more
Representative species