Diet Overlap

Dumetella carolinensis (Grey Catbird)
Turdus migratorius (American Robin)

Common Diet

Lindera triloba (sassafras)
Phytolacca americana (common pokeweed)
Prunus serotina (Black Cherry)
Vitis cinerea (graybark grape)

Common Habitat

Acadia National Park
Alberta Mountain forests
Algonquin Provincial Park
Allegheny Highlands forests
Amistad National Recreation Area
Antietam National Battlefield
Apostle Islands National Lakeshore
Appalachian mixed mesophytic forests
Appalachian-Blue Ridge forests
Arkansas Post National Memorial
Assateague Island National Seashore
Atlantic coastal pine barrens
Badlands National Park
Bahamian pine mosaic
Bandelier National Monument
Bermuda subtropical conifer forests
Big Bend Biosphere Reserve
Big Cypress National Preserve
Bighorn Canyon National Recreation Area
Biscayne National Park
Black Canyon of the Gunnison National Park
Blackbeard Island National Wildlife Refuge
Blackwater National Wildlife Refuge
Bombay Hook National Wildlife Refuge
British Columbia mainland coastal forests
Bruce Peninsula National Park
Buffalo National River
Cabrillo National Monument
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
Canadian Aspen forests and parklands
Canaveral National Seashore
Cape Breton Highlands National Park
Cape Cod National Seashore
Cape Hatteras National Seashore
Cape Lookout National Seashore
Caribbean Islands
Carl Sandburg Home National Hist. Site
Carlsbad Caverns National Park
Carolinian-South Atlantic Biosphere Reserve
Cascade Mountains leeward forests
Catoctin Mountain Park
Cedar Creek LTER Site
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 Plains Biosphere Reserve
Central tall grasslands
Central U.S. hardwood forests
Champlain-Adirondack Biosphere Reserve
Channel Islands National Marine Sanctuary
Channel Islands National Park
Chattahoochee River National Recreation Area
Chesapeake & Ohio Canal National Hist. Park
Chickasaw National Recreation Area
Chippewa Nature Center
Colonial National Historic Park
Colorado Plateau shrublands
Colorado Rockies forests
Congaree Swamp National Park
Coronado National Monument
Coweeta Hydrologic Laboratory LTER Site
Craters of the Moon National Monument
Crosswinds Marsh
Cuban cactus scrub
Cuban dry forests
Cuban moist forests
Cuban pine forests
Cuban wetlands
Curecanti National Recreation Area
Cuyahoga Valley National Park
De Soto National Wildlife Refuge
Death Valley National Park
Devils Tower National Monument
Dinosaur National Monument
East Central Texas forests
Eastern forest-boreal transition
Eastern Great Lakes lowland forests
Edwin S. George Reserve
Effigy Mounds National Monument
El Malpais National Monument
El Morro National Monument
Elk Island National Park
Everglades
Farallon National Wildlife Refuge
Fathom Five National Marine Park
Felsenthal National Wildlife Refuge
Fire Island National Seashore
Flint Hills tall grasslands
Florida Keys National Marine Sanctuary
Florida sand pine scrub
Forillon National Park
Fort Caroline National Memorial
Fort Davis National Historic Site
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
Gateway National Recreation Area
George WA Carver National Monument
George Washington Birthplace National Monument
George Washington Memorial Parkway
Georgian Bay Islands National Park
Gettysburg National Military Park
Glen Canyon National Recreation Area
Grand Teton National Park
Grandfather Mountain
Grasslands National Park
Great Basin montane forests
Great Basin National Park
Great Basin shrub steppe
Great Swamp National Wildlife Refuge
Gulf of St. Lawrence lowland forests
Harpers Ferry National Historical Park
Harvard Forest LTER Site
Herbert Hoover National Historic Site
Homestead National Monument of America
Hope College Biology Nature Preserve
Hopewell Furnace National Historic Site
Horseshoe Bend National Military Park
Hot Springs National Park
Hubbard Brook Biosphere Reserve
Jean Lafitte National Hist. Park & Preserve
Kejimkujik National Park
Kejimkujik Seaside Adjunct
Kellogg Biological Station LTER Site
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 Roosevelt National Recreation Area
Lake Superior Provincial Park
Land Between the Lakes Biosphere Reserve
Lincoln Boyhood National Memorial
Little River National Wildlife Refuge
Little St. Simons Island
Long Point Biosphere Reserve
Madrean Pine-Oak Woodlands
Mammoth Cave Area Biosphere Reserve (Natn'l Park)
Manassas National Battlefield Park
Mesoamerica
Middle Atlantic coastal forests
Midwestern Canadian Shield forests
Mingan Archipelago National Park Reserve
Mississippi lowland forests
Mojave and Colorado Deserts Biosphere Reserve
Mojave desert
Montana Valley and Foothill grasslands
Morristown National Historical Park
Mount Mitchell State Park
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 mixed grasslands
Northern short grasslands
Northern tall grasslands
Oaxacan montane forests
Obed Wild and Scenic River
Ocmulgee National Monument
Okanagan dry forests
Okefenokee National Wildlife Refuge
Organ Pipe Cactus Biosphere Reserve
Ozark Mountain forests
Ozark National Scenic Riverways
Padre Island National Seashore
Palouse grasslands
Petrified Forest National Park
Pictured Rocks National Lakeshore
Piney Woods forests
Pipestone National Monument
Point Pelee National Park
Point Reyes National Seashore
Polar Bear Provincial Park
Prince Albert National Park
Prince Edward Island National Park
Puget lowland forests
Pukaskwa National Park
Redberry Lake Biosphere Reserve
Redwood National Park
Reserva de la Biosfera de Sian Ka'an
Reserva de la Biosfera Sierra Gorda
Riding Mountain Biosphere Reserve
Rock Creek Park
Rocky Mountain Biosphere Reserve
Rondeau Provincial Park
Roosevelt Vanderbilt National Historic Site
Saint Croix International Historic Site
Saint Lawrence Islands National Park
Saint-Gaudens National Historic Site
Santa Cruz Island Preserve
Santa Monica Mountains National Recreation Area
Saratoga National Historical Park
Sequoia and Kings Canyon Biosphere Reserve
Sevilleta LTER Site
Shenandoah National Park
Shortgrass Steppe LTER Site
Sierra Madre de Oaxaca pine-oak forests
Sleeping Bear Dunes National Lakeshore
Snake-Columbia shrub steppe
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
Southwest Nova Biosphere Reserve
Stones River National Battlefield
Sunset Crater Volcano National Monument
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
Veracruz montane forests
Vicksburg National Military Park
Virginia Coast Biosphere Reserve
Voyageurs 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
White Sands National Monument
Willamette Valley forests
Wilson's Creek National Battlefield
Wind Cave National Park
Wupatki National Monument
Wyoming Basin shrub steppe
Yellowstone Biosphere Reserve

Attributes / relations provided by
1Characteristics of Some Fruiting Plant Species in Northwest Arkansas, and the Avian Assemblages that Feed on Them, John W. Prather, Kimberly G. Smith, Michael A. Mlodinow, Cecilia M. Riley, Journal of the Arkansas Academy of Science,Vol. 54, 2000, pp. 103-108
2Study of Northern Virginia Ecology