Diet Overlap

Branta bernicla (Brent Goose)
Anas platyrhynchos (Mallard)

Common Diet

Triglochin maritima (Sea Arrow Grass)

Common Habitat

Acadia National Park
Akeragh, Banna and Barrow Harbour SPA
Alaska Maritime National Wildlife Refuge
Aleutian Islands Biosphere Reserve
Alfsee
Algonquin Provincial Park
Alto Golfo de California y Delta del Rio Colorado
ANSE DU FIER D'ARS EN RE
Anza-Borrego Desert State Park, CA
Arctic coastal tundra
Arctic National Wildlife Refuge
Atlantic mixed forests
Baie de Goulven
Baie de Morlaix
Baie de Quiberon
Baie de Saint-Brieuc - Est
Baie de Vilaine
Baldoyle Bay SPA
Ballymacoda Bay SPA
Baltic mixed forests
Bassin d'Arcachon : Banc d'Arguin
Beringia lowland tundra
Beringia upland tundra
Bialowieza National Park
Bideford Bay Biosphere Reserve
Big Morongo Canyon Preserve
Blackwater National Wildlife Refuge
Boyne Estuary SPA
Broadmeadow/Swords Estuary SPA
Bruce Peninsula National Park
Cabrillo National Monument
Caerlaverock National Nature Reserve
California Coast Ranges Biosphere Reserve
Cape Cod National Seashore
Cape Hatteras National Seashore
Cape Lookout National Seashore
Carolinian-South Atlantic Biosphere Reserve
Castlemaine Harbour SPA
Celtic broadleaf forests
Central China loess plateau mixed forests
Central Plains Biosphere Reserve
Channel Islands National Marine Sanctuary
Channel Islands National Park
Cote médocaine : Dunes boisées et dépression humides
Creighton Ranch Preserve
Cummeen Strand SPA
Dee Estuary/ Aber Dyfrdwy
DELTA EVROU KAI DYTIKOS VRACHIONAS
Denali Biosphere Reserve
DOÑANA
Donegal Bay SPA
Dornoch Firth and Morrich More
Drumcliff Bay SPA
Dundalk Bay SPA
Dungeness
Dyfi National Nature Reserve
Elkhorn Slough Preserve
Emsmarsch von Leer bis Emden
English Lowlands beech forests
ESTERO DE DOMINGO RUBIO
Europe & Northern Asia (excluding China)
Farallon National Wildlife Refuge
Fathom Five National Marine Park
Fire Island National Seashore
Forillon National Park
Fort Pulaski National Monument
Fundy National Park
Gateway National Recreation Area
Glacier Bay National Park and Preserve
Golden Gate National Recreation Area
Golfe du Morbihan
Gwaii Haanas National Park Reserve
Haapajärvi-Säärystenjärvi
Hailuoto, pohjoisranta
Heinlahti
Hortobágy National Park
Huang He Plain mixed forests
Humber Estuary
Hund und Paapsand
Iles de la Colombière, de la Nellière et des Haches
Inner Galway Bay SPA
Isle of Rum National Nature Reserve
Ivvavik National Park
Japan
Jian Nan subtropical evergreen forests
Joshua Tree National Park
Kaloko-Honokohau National Historical Park
Kamchia Complex
Kouchibouguac National Park
Krammer-Volkerak
Kronotskiy Biosphere Reserve
Krummhörn
Kura kurgu
Lac de Grand Lieu
Lake Mead National Recreation Area
Laplandskiy Biosphere Reserve
Long Point Biosphere Reserve
Lough Foyle SPA
Lough Swilly SPA
Manchurian mixed forests
Marais de l'Erdre
Marais du Nord Médoc
MARAIS POITEVIN
Marismas de Santoña y Noja
MARISMAS DEL RIO PIEDRAS Y FLECHA DEL ROMPIDO
Mediterranean Basin
Mediterranean dry woodlands and steppe
Mediterranean woodlands and forests
Mingan Archipelago National Park Reserve
Minsmere to Walberswick Heaths and Marshes
Mojave and Colorado Deserts Biosphere Reserve
Mount Arrowsmith
Neusiedler See-Osterreichischer Teil
Niagara Escarpment Biosphere Reserve
Niederung der Unteren Havel
Nihonkai evergreen forests
Nihonkai montane deciduous forests
Nipomo Dunes Preserve
North America
North Atlantic moist mixed forests
North Bull Island
North Bull Island SPA
North Norfolk Coast
North Norfolk Coast Biosphere Reserve
Northeast China Plain deciduous forests
Northwest Russian-Novaya Zemlya tundra
Olympic Biosphere Reserve
Pacific Rim National Park Reserve
Paine Preserve
Palava Protected Landscape Area
Point Reyes National Seashore
Prince Edward Island National Park
Ramsar-Gebiet S-H Wattenmeer und angrenzende Küstengebiete
Redwood National Park
Rheiderland
River Nanny Estuary and Shore SPA
Rivière de Pénerf
Rogerstown Estuary SPA
Rondeau Provincial Park
Roosevelt Vanderbilt National Historic Site
Saaristomeri
Saguenay - St. Lawrence Marine Park
Saint Lawrence Islands National Park
Santa Cruz Island Preserve
Santa Monica Mountains National Recreation Area
Saratoga National Historical Park
Schorfheide-Chorin
Sefton Coast
Severn Estuary/ Môr Hafren
Shortgrass Steppe LTER Site
Sirmilik National Park
South Atlantic Coastal Plain Biosphere Reserve
Southern Korea evergreen forests
Spreewald
St. Kilda National Nature Reserve
Tacumshin Lake
Tacumshin Lake SPA
Taiheiyo evergreen forests
The Murrough SPA
Torhamn-Hästholmen
Tuktut Nogait National Park
Txingudi
U. Rhinluch/Dreetzer See, Havell. Luch und Belziger Landschaftsw.
Unteres Odertal
Unterweser
Utklippan
Väinamere
Val d'Allier Bourbonnais
Veerse Meer
Virginia Coast Biosphere Reserve
Waddensea Area
Waddensea of Schleswig-Holstein
Waddenzee
Wangerland
Westermarsch
Wexford Harbour and Slobs SPA
Wrangell-St. Elias National Park and Preserve
Yancheng
Yellowstone Biosphere Reserve

Attributes / relations provided by
♦ 1del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 2Food 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