Diet Overlap

Calidris canutus (Red Knot)
Calidris pusilla (Semipalmated Sandpiper)

Common Diet

Abra marshalli (Baltic macoma)

Common Habitat

Acadia National Park
Aleutian Islands Biosphere Reserve
Algonquin Provincial Park
Alta Paraná Atlantic forests
Alto Golfo de California y Delta del Rio Colorado
Amazon-Orinoco-Southern Caribbean mangroves
Apostle Islands National Lakeshore
Araya and Paria xeric scrub
Arctic foothills tundra
Arctic National Wildlife Refuge
Assateague Island National Seashore
Atlantic Coast restingas
Atlantic Forest
Bahamian pine mosaic
Bahamoan-Antillean mangroves
Bahia coastal forests
Belizean pine forests
Bermuda subtropical conifer forests
Biscayne National Park
Blackbeard Island National Wildlife Refuge
Blackwater National Wildlife Refuge
Bombay Hook National Wildlife Refuge
Bruce Peninsula National Park
California Coast Ranges Biosphere Reserve
Canaveral National Seashore
Cape Cod National Seashore
Cape Hatteras National Seashore
Cape Lookout National Seashore
Cape Romain National Wildlife Refuge
Caribbean Islands
Caribbean shrublands
Carolinian-South Atlantic Biosphere Reserve
Cayos Miskitos-San Andrés and Providencia moist forests
Central American dry forests
Central Andean puna
Central Gulf Coastal Plain Biosphere Reserve
Ciénaga de Zapata National Park
Cuban cactus scrub
Cuban dry forests
Cuban moist forests
Cuban pine forests
Cuban wetlands
Cumberland Island National Seashore
Enriquillo wetlands
Farallon National Wildlife Refuge
Fathom Five National Marine Park
Florida Keys National Marine Sanctuary
Forillon National Park
Fort Matanzas National Monument
Fort Pulaski National Monument
Gateway National Recreation Area
Glacier Bay National Park and Preserve
Gros Morne National Park
Guajira-Barranquilla xeric scrub
Guayaquil flooded grasslands
Guianan Freshwater swamp forests
Guianan moist forests
High Arctic tundra
Hispaniolan dry forests
Hispaniolan moist forests
Hispaniolan pine forests
Indiana Dunes National Lakeshore
Ivvavik National Park
Jamaican dry forests
Jamaican moist forests
Kouchibouguac National Park
La Costa xeric shrublands
Lajes do Pico - Ilha do Pico
Lake Mead National Recreation Area
Lake Superior Provincial Park
Leeward Islands moist forests
Lesser Antillean dry forests
Little St. Simons Island
Long Point Biosphere Reserve
Low Arctic tundra
Marajó varzea
Mesoamerica
Mesoamerican Gulf-Caribbean mangroves
Middle Arctic tundra
Mingan Archipelago National Park Reserve
Minsmere to Walberswick Heaths and Marshes
Miskito pine forests
Morrocoy National Park
Niagara Escarpment Biosphere Reserve
North America
North Norfolk Coast
Northeastern Brazil restingas
Oldshoremore and Sandwood
Orinoco Delta swamp forests
Pacific Rim National Park Reserve
Padre Island National Seashore
Panamanian dry forests
Paraguana xeric scrub
Parque Nacional Henri Pittier
Pernambuco coastal forests
Point Pelee National Park
Point Reyes National Seashore
Prince Albert National Park
Prince Edward Island National Park
Puerto Rican dry forests
Puerto Rican moist forests
Pukaskwa National Park
Queen Maud Gulf Bird Sanctuary
Redberry Lake Biosphere Reserve
Redwood National Park
Rondeau Provincial Park
Saguenay - St. Lawrence Marine Park
Saint Croix International Historic Site
Saint Lawrence Islands National Park
Salt Plains National Wildlife Refuge
Santa Monica Mountains National Recreation Area
Sechura desert
Serra do Mar coastal forests
Sierra Nevada de Santa Marta (incl. Tayrona NP)
South American Pacific mangroves
South Atlantic Coastal Plain Biosphere Reserve
Southern Atlantic mangroves
Southern Mesoamerican Pacific mangroves
Tawas Point State Park
Tocantins/Pindare moist forests
Trinidad and Tobago moist forests
Tropical Andes
Tumbes-Choco-Magdalena
Ukkusiksalik National Park
Uruguayan savanna
Virginia Coast Biosphere Reserve
Walker Bay Field Station
Windward Islands moist forests
Winisk River Provincial Park
Wood Buffalo National Park
Yellowstone Biosphere Reserve
Yucatán dry forests
Yucatán moist forests

Attributes / relations provided by
♦ 1Energy flow of a boreal intertidal ecosystem, the Sylt-Rømø Bight, Dan Baird, Harald Asmus, Ragnhild Asmus, Mar Ecol Prog Ser 279: 45–61, 2004
♦ 2del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.