Diet Overlap

Anas platyrhynchos (Mallard) Ondatra zibethicus (muskrat)

Common Diet

Carex stricta (upright sedge) Lampsilis radiata (eastern lampmussel) Lithobates catesbeianus (American Bullfrog) Panicum virgatum (old switch panic grass) Phragmites australis (common reed) Platanus mexicana (American sycamore) Pontederia cordata (Pickerel Weed) Potamogeton lucens (long-leaf pondweed) Pseudacris crucifer (Spring Peeper) Quercus alba (White Oak) Salix nigra (black willow) Zizania aquatica (annual wildrice)

Common Habitat

Acadia National Park Agate Fossil Beds National Monument Aggtelek Biosphere Reserve Alaska Peninsula montane taiga Alaska-St. Elias Range tundra Alberta Mountain forests Alberta-British Columbia foothills forests Algonquin Provincial Park Allegheny Highlands forests Alto Golfo de California y Delta del Rio Colorado Amistad National Recreation Area Antietam National Battlefield Apostle Islands National Lakeshore Appalachian mixed mesophytic forests Appalachian-Blue Ridge forests Arches National Park Arizona Mountains forests Assateague Island National Seashore Astrakhanskiy Biosphere Reserve Atlantic coastal pine barrens Audubon National Wildlife Refuge Aztec Ruins National Monument Badlands National Park Baikalskiy Biosphere Reserve Bandelier National Monument Banff National Park Barguzinskiy Biosphere Reserve Bayerischer Wald National Park Belovezhskaya Pushcha Biosphere Reserve Berezinskiy Zapovednik Beringia lowland tundra Beringia upland tundra Bialowieza National Park Big Thicket Biosphere Reserve 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 Buffalo National River California Central Valley grasslands California Coast Ranges Biosphere Reserve California Floristic Province California interior chaparral and woodlands California montane chaparral and woodlands Calvin College Ecosystem Preserve Canadian Aspen forests and parklands Canyonlands National Park Cape Breton Highlands National Park Cape Cod National Seashore Cape Hatteras National Seashore Capital Reef National Park Carlsbad Caverns National Park Cascade Mountains leeward forests Catoctin Mountain Park Cedar Creek LTER Site Central and Southern Cascades forests Central and Southern mixed grasslands Central British Columbia Mountain forests Central Canadian Shield forests Central forest-grasslands transition Central Pacific coastal forests Central tall grasslands Central U.S. hardwood forests Champlain-Adirondack Biosphere Reserve Chernye Zemli Biosphere Reserve Chickasaw National Recreation Area Chihuahuan desert Chippewa Nature Center Codru (Kodry) Zapovednik Colorado Plateau shrublands Colorado Rockies forests Congaree Swamp National Park Cook Inlet taiga Copper Plateau taiga Cosumnes River Preserve Crater Lake National Park Cuyahoga Valley National Park Darvinsky Zapovednik Daurskiy Biosphere Reserve De Soto National Wildlife Refuge Deer Flat National Wildlife Refuge Denali Biosphere Reserve Devils Tower National Monument Dinosaur National Monument East Central Texas forests Eastern Canadian Shield taiga Eastern Cascades forests Eastern forest-boreal transition Eastern Great Lakes lowland forests Edwin S. George Reserve Effigy Mounds National Monument Elk Island National Park Europe & Northern Asia (excluding China) Fathom Five National Marine Park Fire Island National Seashore Flint Hills tall grasslands Fort Necessity National Battlefield Fraser Biosphere Reserve Fraser Plateau and Basin complex Friendship Hill National Historic Site Fundy National Park Galichia Gora Zapovednik Gateway National Recreation Area George Washington Birthplace National Monument George Washington Memorial Parkway Georgian Bay Islands National Park Gettysburg National Military Park Glacier National Park Grand Teton National Park Grasslands National Park Great Basin montane forests Great Basin 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 Homestead National Monument of America Hope College Biology Nature Preserve Horseshoe Bend National Military Park Hortobágy National Park Hot Springs National Park Hovenweep National Monument Hubbard Brook Biosphere Reserve Indiana Dunes National Lakeshore Interior Alaska-Yukon lowland taiga Interior Yukon-Alaska alpine tundra Isle Royale Biosphere Reserve Jasper National Park Jean Lafitte National Hist. Park & Preserve Karkonosze Kejimkujik Seaside Adjunct Kiskunsag Biosphere Reserve Kivach Zapovednik Klamath-Siskiyou forests 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 Lacassine National Wildlife Refuge Lake Chelan National Recreation Area Lake Mead National Recreation Area Lake Meredith National Recreation Area Lake Roosevelt National Recreation Area Lake Superior Provincial Park Land Between the Lakes Biosphere Reserve Laplandskiy Biosphere Reserve Lassen Volcanic National Park Lava Beds National Monument Long Point Biosphere Reserve Luberon Lukajno Lake Reserve Mammoth Cave Area Biosphere Reserve (Natn'l Park) Mid-Continental Canadian forests Middle Atlantic coastal forests Midwestern Canadian Shield forests Mingan Archipelago National Park Reserve Mississippi lowland forests Mojave desert Montana Valley and Foothill grasslands Morristown National Historical Park Mount Arrowsmith Mount Rainier National Park Mount Revelstoke National Park Muskwa-Slave Lake forests Nahanni National Park Reserve Nebraska Sand Hills mixed grasslands New England-Acadian forests New Jersey Pinelands Biosphere Reserve New River Gorge National River Niagara Escarpment Biosphere Reserve North America North Central Rockies forests Northeastern coastal forests Northern California coastal forests Northern Canadian Shield taiga Northern Cordillera forests Northern mixed grasslands Northern Pacific coastal forests Northern short grasslands Northern tall grasslands Northern transitional alpine forests Northwest Territories taiga Oak Ridge National Environmental Research Park Ogilvie-MacKenzie alpine tundra Okanagan dry forests Okskiy Biosphere Reserve Olympic Biosphere Reserve Ozark Mountain forests Ozark National Scenic Riverways Pacific Coastal Mountain icefields and tundra Palava Protected Landscape Area Palouse grasslands Pechoro-Ilychskiy Biosphere Reserve Piney Woods forests Pipestone National Monument Point Pelee National Park Point Reyes National Seashore Polana Biosphere Reserve Polar Bear Provincial Park Prince Albert National Park Prince Edward Island National Park Prioksko-Terrasny Biosphere Reserve Puget lowland forests Pukaskwa National Park Redberry Lake Biosphere Reserve Redwood National Park Reserve de la Biosphere des Vosges du Nord Reserve Srebarna Riding Mountain Biosphere Reserve Rocky Mountain Biosphere Reserve Rondeau Provincial Park Roosevelt Vanderbilt National Historic Site Ruegen Saint Lawrence Islands National Park Saint-Gaudens National Historic Site San Joaquin Biosphere Reserve Saratoga National Historical Park Schorfheide-Chorin Scotts Bluff National Monument Sefton Coast Shortgrass Steppe LTER Site Sierra Nevada forests Sleeping Bear Dunes National Lakeshore Snake-Columbia shrub steppe Sokhondinskiy Biosphere Reserve Sonoran desert South Atlantic Coastal Plain Biosphere Reserve South Central Rockies forests Southeastern conifer forests Southeastern mixed forests Southern Appalachian Biosphere Reserve Southern Asia Southern Great Lakes forests Southern Hudson Bay taiga Spreewald Tennessee River Gorge Texas blackland prairies Torngat Mountain tundra Trebon Basin Protected Landscape Area Triglav National Park Tsentral'no-Sibirskiy Biosphere Reserve Ubsunurskaya Kotlovina (Ubsunur Depression) Upper Midwest forest-savanna transition Upper Miss. River Nat'l Wildlife Refuge Valley Forge National Historical Park Vina Plains Preserve Voronezhskiy Biosphere Reserve Voyageurs National Park Vuntut National Park Waddensea of Lower Saxony Wapusk National Park Wasatch and Uinta montane forests Waterton Biosphere Reserve Western Great Lakes forests Western Gulf Coastal grasslands Western Michigan University’s Asylum Lake Western short grasslands Wheeler National Wildlife Refuge Whiskey-Shasta-Trinity National Recreation Area Willamette Valley forests Wood Buffalo National Park Woodland Caribou Provincial Wilderness Park Wrangell-St. Elias National Park and Preserve Wyoming Basin shrub steppe Yellowstone Biosphere Reserve Yoho National Park Yosemite National Park Yukon Interior dry forests Zion National Park