Diet Overlap

Anas platyrhynchos (Mallard)
Dryocopus pileatus (Pileated Woodpecker)

Common Diet

Quercus alba (White Oak)
Quercus velutina (Black Oak)

Common Habitat

Acadia National Park
Alberta Mountain forests
Alberta-British Columbia foothills forests
Algonquin Provincial Park
Allegheny Highlands forests
Antietam National Battlefield
Apostle Islands National Lakeshore
Appalachian mixed mesophytic forests
Appalachian-Blue Ridge forests
Arkansas Post National Memorial
Atlantic coastal pine barrens
Bandelier National Monument
Banff National Park
Big Cypress National Preserve
Big Thicket Biosphere Reserve
Blackbeard Island National Wildlife Refuge
Blackwater National Wildlife Refuge
Boggs Lake Preserve
British Columbia mainland coastal forests
Bruce Peninsula National Park
Buffalo National River
California Coast Ranges Biosphere Reserve
California Floristic Province
Calvin College Ecosystem Preserve
Cape Breton Highlands National Park
Cape Hatteras National Seashore
Cape Romain National Wildlife Refuge
Carolinian-South Atlantic Biosphere Reserve
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 Gulf Coastal Plain Biosphere Reserve
Central Pacific coastal forests
Central tall grasslands
Central U.S. hardwood forests
Champlain-Adirondack Biosphere Reserve
Chattahoochee River National Recreation Area
Chesapeake & Ohio Canal National Hist. Park
Chickasaw National Recreation Area
Chippewa Nature Center
Colonial National Historic Park
Congaree Swamp National Park
Crater Lake National Park
Cumberland Island National Seashore
Cuyahoga Valley National Park
Devil's Postpile National Monument
East Central Texas forests
Eastern Cascades forests
Eastern forest-boreal transition
Eastern Great Lakes lowland forests
Edwards Plateau savanna
Effigy Mounds National Monument
Elk Island National Park
Everglades
Fathom Five National Marine Park
Felsenthal National Wildlife Refuge
Florida sand pine scrub
Forillon National Park
Fort Matanzas National Monument
Fort Necessity National Battlefield
Fort Pulaski National Monument
Fraser Plateau and Basin complex
Friendship Hill National Historic Site
Fundy National Park
George WA Carver National Monument
George Washington Birthplace National Monument
George Washington Memorial Parkway
Georgian Bay Islands National Park
Gettysburg National Military Park
Glacier National Park
Grand Canyon National Park
Grandfather Mountain
Great Basin National Park
Great Smoky Mountains National Park
Great Swamp National Wildlife Refuge
Greenwater Provincial Park
Gulf of St. Lawrence lowland forests
Harpers Ferry National Historical Park
Heath and Marjorie Angelo Coast Range Preserve
Hope College Biology Nature Preserve
Hopewell Furnace National Historic Site
Horseshoe Bend National Military Park
Hot Springs National Park
Hubbard Brook Biosphere Reserve
Indiana Dunes National Lakeshore
Isle Royale Biosphere Reserve
Jasper National Park
Jean Lafitte National Hist. Park & Preserve
Klamath-Siskiyou forests
Kootenay National Park
Kouchibouguac National Park
La Mauricie National Park
Lacassine National Wildlife Refuge
Lake Chelan National Recreation Area
Lake Superior Provincial Park
Land Between the Lakes Biosphere Reserve
Lanphere-Christensen Dunes Preserve
Lassen Volcanic National Park
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
Mississippi lowland forests
Montana Valley and Foothill grasslands
Morristown National Historical Park
Mount Rainier National Park
Mount Revelstoke National Park
Muir Woods National Monument
Muskwa-Slave Lake forests
Nahanni National Park Reserve
National Capital Region - East
New England-Acadian forests
New River Gorge National River
Niagara Escarpment Biosphere Reserve
North America
North Central Rockies forests
Northeastern coastal forests
Northern California coastal forests
Northern Cordillera forests
Northern tall grasslands
Northern transitional alpine forests
Oak Ridge National Environmental Research Park
Okanagan dry forests
Okefenokee National Wildlife Refuge
Olympic Biosphere Reserve
Ozark Mountain forests
Ozark National Scenic Riverways
Pacific Rim National Park Reserve
Palouse grasslands
Pictured Rocks National Lakeshore
Piney Woods forests
Point Reyes National Seashore
Prince Albert National Park
Prince William Forest Park
Puget lowland forests
Pukaskwa National Park
Queen Charlotte Islands
Redwood National Park
Richmond National Battlefield Park
Riding Mountain Biosphere Reserve
Rock Creek Park
Rondeau Provincial Park
Roosevelt Vanderbilt National Historic Site
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 Juan Island National Historical Park
Santa Monica Mountains National Recreation Area
Santee Coastal Reserve and Washo Reserve
Saratoga National Historical Park
Sequoia and Kings Canyon Biosphere Reserve
Sierra Nevada forests
Sleeping Bear Dunes National Lakeshore
South Atlantic Coastal Plain Biosphere Reserve
South Florida rocklands
Southeastern conifer forests
Southeastern mixed forests
Southern Appalachian Biosphere Reserve
Southern Great Lakes forests
Southern Hudson Bay taiga
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
Wheeler National Wildlife Refuge
Whiskey-Shasta-Trinity National Recreation Area
Wilson's Creek National Battlefield
Wood Buffalo National Park
Woodland Caribou Provincial Wilderness Park
Yellowstone Biosphere Reserve
Yoho National Park
Yosemite National Park

Attributes / relations provided by
1Study of Northern Virginia Ecology