Diet Overlap

Anas platyrhynchos (Mallard)
Plectrophenax nivalis (Snow Bunting)

Common Diet

Triglochin maritima (Sea Arrow Grass)

Common Habitat

Acadia National Park
Aggtelek Biosphere Reserve
Alaska Maritime National Wildlife Refuge
Alaska Peninsula montane taiga
Alaska-St. Elias Range tundra
Alberta Mountain forests
Alberta-British Columbia foothills forests
Aleutian Islands Biosphere Reserve
Aleutian Islands tundra
Algonquin Provincial Park
Allegheny Highlands forests
Altai alpine meadow and tundra
Altai montane forest and forest steppe
Altai steppe and semi-desert
Amur meadow steppe
Andakill Protected Habitat Area
Apostle Islands National Lakeshore
Appalachian mixed mesophytic forests
Appalachian-Blue Ridge forests
Arctic coastal tundra
Arctic foothills tundra
Arctic National Wildlife Refuge
Assateague Island National Seashore
Astrakhanskiy Biosphere Reserve
Atlantic coastal pine barrens
Atlantic mixed forests
Audubon National Wildlife Refuge
Badlands National Park
Baie d'Audierne
Baltic mixed forests
Banff National Park
Barguzinskiy Biosphere Reserve
Belovezhskaya Pushcha Biosphere Reserve
Berezinskiy Zapovednik
Beringia lowland tundra
Beringia upland tundra
Bermuda subtropical conifer forests
Bialowieza National Park
Bighorn Canyon National Recreation Area
Blackwater National Wildlife Refuge
Blue Mountains forests
Bombay Hook National Wildlife Refuge
Bonanza Creek LTER Site
British Columbia mainland coastal forests
Brooks-British Range tundra
Bruce Peninsula National Park
Caerlaverock National Nature Reserve
Caldeira e Capelinhos - Ilha do Faial
Caledon conifer forests
California Coast Ranges Biosphere Reserve
Canadian Aspen forests and parklands
Cantabrian mixed forests
Cape Breton Highlands National Park
Cape Cod National Seashore
Cape Hatteras National Seashore
Cape Lookout National Seashore
Cape Romain National Wildlife Refuge
Carolinian-South Atlantic Biosphere Reserve
Carpathian montane forests
Cascade Mountains leeward forests
Caspian lowland desert
Caucasus
Cedar Creek LTER Site
Celtic broadleaf forests
Central and Southern mixed grasslands
Central British Columbia Mountain forests
Central European mixed forests
Central forest-grasslands transition
Central Gulf Coastal Plain Biosphere Reserve
Central Pacific coastal forests
Central tall grasslands
Central U.S. hardwood forests
Champlain-Adirondack Biosphere Reserve
Chesapeake & Ohio Canal National Hist. Park
Chippewa Nature Center
Colorado Plateau shrublands
Colorado Rockies forests
Copper Plateau taiga
Costa e Caldeirão - Ilha do Corvo
Costa Sul e Sudoeste - Ilha das Flores
Craters of the Moon National Monument
Crosswinds Marsh
Cumberland Island National Seashore
Da Hinggan-Dzhagdy Mountains conifer forests
Darvinsky Zapovednik
Daurian forest steppe
Death Valley National Park
Dee Estuary/ Aber Dyfrdwy
Deer Flat National Wildlife Refuge
Denali Biosphere Reserve
Dornoch Firth and Morrich More
Dyfi National Nature Reserve
East European forest steppe
Eastern forest-boreal transition
Eastern Great Lakes lowland forests
Effigy Mounds National Monument
Elk Island National Park
Emin Valley steppe
English Lowlands beech forests
Everglades
Farallon National Wildlife Refuge
Fathom Five National Marine Park
Flint Hills tall grasslands
Florida sand pine scrub
Flusslandschaft Elbe Biosphere Reserve
Forillon National Park
Fort Pulaski National Monument
Fraser Plateau and Basin complex
Fundy National Park
Gates of the Arctic National Park
Gateway National Recreation Area
Georgian Bay Islands National Park
Glacier Bay National Park and Preserve
Glacier National Park
Grasslands National Park
Great Basin shrub steppe
Great Smoky Mountains National Park
Great Swamp National Wildlife Refuge
Greenwater Provincial Park
Gulf of St. Lawrence lowland forests
Gwaii Haanas National Park Reserve
Heinlahti
Horicon National Wildlife Refuge
Hortobágy National Park
Hubbard Brook Biosphere Reserve
Humber Estuary
Iceland boreal birch forests and alpine tundra
Iivaara - Jousivaara
Indiana Dunes National Lakeshore
Interior Alaska-Yukon lowland taiga
Interior Yukon-Alaska alpine tundra
Isle of Rum National Nature Reserve
Isomatala-Maasyvänlahti
Ivvavik National Park
Jasper National Park
Junggar Basin semi-desert
Karkonosze
Kavkazskiy Biosphere Reserve
Kejimkujik Seaside Adjunct
Killarney National Park
Kluane National Park and Reserve
Knife River Indian Villages National Hist. Site
Konza Prairie Biosphere Reserve
Kootenay National Park
Kouchibouguac National Park
Krkonose
Kronotskiy Biosphere Reserve
La Mauricie National Park
Lago di Mezzola e Pian di Spagna
Laidauredeltat
Lake Roosevelt National Recreation Area
Lake Superior Provincial Park
Lake Torne Area
Laplandskiy Biosphere Reserve
Little St. Simons Island
Long Point Biosphere Reserve
Lukajno Lake Reserve
Mammoth Cave Area Biosphere Reserve (Natn'l Park)
Manchurian mixed forests
Marais de l'Erdre
Middle Atlantic coastal forests
Mingan Archipelago National Park Reserve
Minsmere to Walberswick Heaths and Marshes
Mojave and Colorado Deserts Biosphere Reserve
Mojave desert
Mongolian-Manchurian grassland
Montana Valley and Foothill grasslands
Moor House-Upper Teesdale Biosphere Reserve
Mount Arrowsmith
Mountains of Central Asia
Nahanni National Park Reserve
Nebraska Sand Hills mixed grasslands
Neusiedler See-Osterreichischer Teil
New England-Acadian forests
Niagara Escarpment Biosphere Reserve
Noatak Biosphere Reserve
North America
North Atlantic moist mixed forests
North Bull Island
North Central Rockies forests
North Norfolk Coast
North Norfolk Coast Biosphere Reserve
Northeast China Plain deciduous forests
Northeastern coastal forests
Northern mixed grasslands
Northern Pacific coastal forests
Northern short grasslands
Northern tall grasslands
Northern transitional alpine forests
Northwest Russian-Novaya Zemlya tundra
Ogilvie-MacKenzie alpine tundra
Okanagan dry forests
Okskiy Biosphere Reserve
Olympic Biosphere Reserve
Pacific Coastal Mountain icefields and tundra
Pacific Rim National Park Reserve
Palava Protected Landscape Area
Palouse grasslands
Pannonian mixed forests
Parco Naturale Adamello
Pechoro-Ilychskiy Biosphere Reserve
Pictured Rocks National Lakeshore
Pipestone National Monument
Point Pelee National Park
Point Reyes National Seashore
Polar Bear Provincial Park
Pontic steppe
Prince Albert National Park
Prince Edward Island National Park
Prioksko-Terrasny Biosphere Reserve
Pukaskwa National Park
Queen Charlotte Islands
Ramsar-Gebiet S-H Wattenmeer und angrenzende Küstengebiete
Redberry Lake Biosphere Reserve
Redwood National Park
Reserva de la Biosfera de Urdaibai
Reserve de la Biosphere des Vosges du Nord
Reserve Nationale de Camargue Biosphere Reserve
Riding Mountain Biosphere Reserve
Rondeau Provincial Park
Saint Croix International Historic Site
Saint Lawrence Islands National Park
Saratoga National Historical Park
Sarmatic mixed forests
Scandinavian and Russian taiga
Scandinavian coastal conifer forests
Scandinavian Montane Birch forest and grasslands
Sefton Coast
Severn Estuary/ Môr Hafren
Shortgrass Steppe LTER Site
Sikhote-Alinskiy Biosphere Reserve
Sirmilik National Park
Sleeping Bear Dunes National Lakeshore
Snake-Columbia shrub steppe
South Atlantic Coastal Plain Biosphere Reserve
South Central Rockies forests
South Florida rocklands
South Pennine Moors
Southeastern conifer forests
Southeastern mixed forests
Southern Appalachian Biosphere Reserve
Southern Great Lakes forests
Spreewald
St. Kilda National Nature Reserve
Suiphun-Khanka meadows and forest meadows
Tawas Point State Park
Texas blackland prairies
Tian Shan foothill arid steppe
Tian Shan montane steppe and meadows
Torngat Mountain tundra
Tsentral'no-Chernozemny Biosphere Reserve
Tsentral'no-Lesnoy Biosphere Reserve
Tuktut Nogait National Park
Ubsunurskaya Kotlovina (Ubsunur Depression)
Ujscie Wisly
Upper Midwest forest-savanna transition
Upper Miss. River Nat'l Wildlife Refuge
Val d'Allier Bourbonnais
Virginia Coast Biosphere Reserve
Voyageurs National Park
Waddensea Area
Waddensea of Schleswig-Holstein
Wapusk National Park
Waterton Biosphere Reserve
Western European broadleaf forests
Western Great Lakes forests
Western short grasslands
Willamette Valley forests
Wind Cave National Park
Wood Buffalo National Park
Wrangell-St. Elias National Park and Preserve
Wyoming Basin shrub steppe
Yellowstone Biosphere Reserve
Yoho National Park

Attributes / relations provided by
♦ 1Food Web Relationships of Northern Puget Sound and the Strait of Juan de Fuca : a Synthesis of the Available Knowledge, Charles A. Simenstad, Bruce S. Miller, Carl F. Nyblade, Kathleen Thornburgh, and Lewis J. Bledsoe, EPA-600 7-29-259 September 1979
♦ 2J. Dierschke (2002) Food preferences of Shorelarks Eremophila alpestris, Snow Buntings Plectrophenax nivalis and Twites Carduelis flavirostris wintering in the Wadden Sea: Seeds of plants from lower salt marsh communities are preferred, with insects less important., Bird Study, 49:3, 263-269