Diet Overlap

Anas platyrhynchos (Mallard)
Aix sponsa (Wood Duck)

Common Diet

Anax junius (green darner)
Carex stricta (upright sedge)
Cephalanthus tetrandra (Buttonbush)
Corydalus cornutus (dobsonfly)
Ischnura posita (Fragile forktail)
Lemna minor (common duckweed)
Liquidambar styraciflua (sweetgum)
Macrobdella decora (Freshwater leech)
Nuphar lutea (yellow cowlily)
Phragmites australis (common reed)
Pontederia cordata (Pickerel Weed)
Potamogeton nodosus (long-leaf pondweed)
Quercus alba (White Oak)
Quercus phellos (Willow Oak)
Quercus velutina (Black Oak)
Zizania aquatica (annual wildrice)

Common Habitat

Acadia National Park
Agate Fossil Beds National Monument
Algonquin Provincial Park
Allegheny Highlands forests
Amistad National Recreation Area
Antietam National Battlefield
Anza-Borrego Desert State Park, CA
Apostle Islands National Lakeshore
Appalachian mixed mesophytic forests
Appalachian-Blue Ridge forests
Arkansas Post National Memorial
Assateague Island National Seashore
Atlantic coastal pine barrens
Audubon National Wildlife Refuge
Badlands National Park
Bahamoan-Antillean mangroves
Banff National Park
Berchtesgaden Alps
Bermuda subtropical conifer forests
Big Bend Biosphere Reserve
Big Cypress National Preserve
Big Thicket Biosphere Reserve
Bighorn Canyon National Recreation Area
Blackbeard Island National Wildlife Refuge
Blackwater National Wildlife Refuge
Blue Mountains forests
Boggs Lake Preserve
Bombay Hook National Wildlife Refuge
British Columbia mainland coastal forests
Bruce Peninsula National Park
Buenavista
Buffalo National River
California Central Valley grasslands
California Coast Ranges Biosphere Reserve
California coastal sage and chaparral
California Floristic Province
California interior chaparral and woodlands
California montane chaparral and woodlands
Calvin College Ecosystem Preserve
Canyonlands National Park
Cape Breton Highlands National Park
Cape Cod National Seashore
Cape Hatteras National Seashore
Cape Romain National Wildlife Refuge
Caribbean Islands
Carlsbad Caverns National Park
Carolinian-South Atlantic Biosphere Reserve
Carrizo Plain Preserve
Cascade Mountains leeward forests
Catoctin Mountain Park
Cedar Creek LTER Site
Central and Southern Cascades forests
Central and Southern mixed grasslands
Central forest-grasslands transition
Central Gulf Coastal Plain Biosphere Reserve
Central Pacific coastal forests
Central Plains Biosphere Reserve
Central tall grasslands
Central U.S. hardwood forests
Champlain-Adirondack Biosphere Reserve
Channel Islands National Marine Sanctuary
Channel Islands National Park
Chesapeake & Ohio Canal National Hist. Park
Chickasaw National Recreation Area
Chihuahuan desert
Chippewa Nature Center
Ciénaga de Zapata National Park
Colonial National Historic Park
Colorado Plateau shrublands
Colorado Rockies forests
Congaree Swamp National Park
Cosumnes River Preserve
Crater Lake National Park
Creighton Ranch Preserve
Crosswinds Marsh
Cuban cactus scrub
Cuban dry forests
Cuban moist forests
Cuban pine forests
Cuban wetlands
Cumberland Island National Seashore
Cuyahoga Valley National Park
De Soto National Wildlife Refuge
Death Valley National Park
Deer Flat National Wildlife Refuge
Devils Tower National Monument
Dinosaur National Monument
Dye Creek Preserve
East Central Texas forests
Eastern Cascades forests
Eastern forest-boreal transition
Eastern Great Lakes lowland forests
Edwards Plateau savanna
Edwin S. George Reserve
Effigy Mounds National Monument
Elk Island National Park
Elkhorn Slough Preserve
Everglades
Fairfield Osborn Preserve
Fathom Five National Marine Park
Felsenthal National Wildlife Refuge
Flint Hills tall grasslands
Florida sand pine scrub
Fort Pulaski National Monument
Friendship Hill National Historic Site
Fundy National Park
Gateway National Recreation Area
George WA Carver National Monument
George Washington Memorial Parkway
Georgian Bay Islands National Park
Gettysburg National Military Park
Glacier National Park
Glen Canyon National Recreation Area
Grandfather Mountain
Gray Lodge State Wildlife Area
Great Basin National Park
Great Smoky Mountains National Park
Great Swamp National Wildlife Refuge
Greenwater Provincial Park
Guadalupe Mountains National Park
Gulf of St. Lawrence lowland forests
Gwaii Haanas National Park Reserve
Harpers Ferry National Historical Park
Heath and Marjorie Angelo Coast Range Preserve
Homestead National Monument of America
Hopewell Furnace National Historic Site
Horicon National Wildlife Refuge
Horseshoe Bend National Military Park
Hot Springs National Park
Indiana Dunes National Lakeshore
Isle Royale Biosphere Reserve
Jean Lafitte National Hist. Park & Preserve
Kaweah Oaks Preserve
Kejimkujik Seaside Adjunct
Kellogg Biological Station LTER Site
Kern River Preserve
Klamath-Siskiyou forests
Knife River Indian Villages National Hist. Site
Konza Prairie Biosphere Reserve
Kouchibouguac National Park
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
Lassen Volcanic National Park
Lava Beds National Monument
Lincoln Boyhood National Memorial
Little River National Wildlife Refuge
Little St. Simons Island
Long Point Biosphere Reserve
Mammoth Cave Area Biosphere Reserve (Natn'l Park)
Manassas National Battlefield Park
Mid-Continental Canadian forests
Middle Atlantic coastal forests
Midwestern Canadian Shield forests
Mingan Archipelago National Park Reserve
Mississippi lowland forests
Mojave and Colorado Deserts Biosphere Reserve
Montana Valley and Foothill grasslands
Morristown National Historical Park
Mount Arrowsmith
Mount Revelstoke National Park
National Capital Parks - Central
National Capital Region - East
Nebraska Sand Hills mixed grasslands
New England-Acadian forests
New Jersey Pinelands Biosphere Reserve
New River Gorge National River
Nez Perce National Historical Park
Niagara Escarpment Biosphere Reserve
North America
North Central Rockies forests
Northeastern coastal forests
Northern California coastal forests
Northern mixed grasslands
Northern short grasslands
Northern tall grasslands
Oak Ridge National Environmental Research Park
Okanagan dry forests
Okefenokee National Wildlife Refuge
Olympic Biosphere Reserve
Organ Pipe Cactus Biosphere Reserve
Ozark Mountain forests
Ozark National Scenic Riverways
Pacific Rim National Park Reserve
Paine Preserve
Palouse grasslands
Petrified Forest National Park
Philip L. Boyd Deep Canyon Desert Research Center
Pictured Rocks National Lakeshore
Piney Woods forests
Pipestone National Monument
Point Pelee National Park
Point Reyes National Seashore
Prince Albert National Park
Prince Edward Island National Park
Prince William Forest Park
Puget lowland forests
Pukaskwa National Park
Redwood National Park
Richmond National Battlefield Park
Riding Mountain Biosphere Reserve
Rock Creek Park
Rocky Mountain Biosphere Reserve
Rondeau Provincial Park
Roosevelt Vanderbilt National Historic Site
Saguenay - St. Lawrence Marine Park
Saint Croix International Historic Site
Saint Lawrence Islands National Park
Saint-Gaudens National Historic Site
Salt Plains National Wildlife Refuge
Samuel P. Taylor State Park
San Joaquin Biosphere Reserve
San Juan Island National Historical Park
Santa Cruz Island Preserve
Santa Monica Mountains National Recreation Area
Santee Coastal Reserve and Washo Reserve
Saratoga National Historical Park
Scotts Bluff National Monument
Sequoia and Kings Canyon Biosphere Reserve
Shortgrass Steppe LTER Site
Sierra Nevada forests
Sleeping Bear Dunes National Lakeshore
Snake-Columbia shrub steppe
Sonoran desert
Sonoran-Sinaloan transition subtropical dry forest
South Atlantic Coastal Plain Biosphere Reserve
South Central Rockies forests
South Florida rocklands
Southeastern conifer forests
Southeastern mixed forests
Southern Appalachian Biosphere Reserve
Southern Great Lakes forests
Tamaulipan mezquital
Tawas Point State Park
Tennessee River Gorge
Texas blackland prairies
Thomas Stone National Historic Site
Upper Midwest forest-savanna transition
Upper Miss. River Nat'l Wildlife Refuge
Valley Forge National Historical Park
Vicksburg National Military Park
Virginia Coast Biosphere Reserve
Voyageurs National Park
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
Wilson's Creek National Battlefield
Wind Cave National Park
Wyoming Basin shrub steppe
Yellowstone Biosphere Reserve
Yoho National Park
Zion National Park