Diet Overlap

Branta canadensis (Canada Goose) Spinus tristis (American Goldfinch)

Common Diet

Digitaria ischaemum (small crabgrass) Panicum virgatum (old switch panic grass)

Common Habitat

Acadia National Park Agate Fossil Beds National Monument Alberta Mountain forests Alberta-British Columbia foothills forests 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 Arches National Park Arizona Mountains forests Arkansas Post National Memorial Assateague Island National Seashore Atlantic coastal pine barrens Audubon National Wildlife Refuge Badlands National Park Bandelier National Monument Banff National Park Big Bend Biosphere Reserve Big Morongo Canyon Preserve Big Thicket Biosphere Reserve Bighorn Canyon National Recreation Area Blackbeard Island National Wildlife Refuge Blackwater National Wildlife Refuge Blue Mountains forests Bombay Hook National Wildlife Refuge British Columbia mainland coastal forests Bruce Peninsula National Park Bryce Canyon 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 Canyonlands National Park Cape Breton Highlands National Park Cape Cod National Seashore Cape Hatteras National Seashore Cape Romain National Wildlife Refuge Capital Reef National Park 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 British Columbia Mountain 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 Chickasaw National Recreation Area Chihuahuan desert Chippewa Nature Center Coachella Valley Preserve Colonial National Historic Park Colorado Plateau shrublands Colorado Rockies forests Congaree Swamp National Park Cosumnes River Preserve Crater Lake National Park Craters of the Moon National Monument Creighton Ranch Preserve Crosswinds Marsh Curecanti National Recreation Area 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 Canadian 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 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 Larned National Historic Site Fort Necessity National Battlefield Fort Pulaski National Monument Fort Union National Monument Fredericksburg and Spotsylvania Nat'l Military Park Friendship Hill National Historic Site Fundy National Park Gateway National Recreation Area George WA Carver National Monument George Washington Birthplace National Monument Georgian Bay Islands National Park Gettysburg National Military Park Glen Canyon National Recreation Area Golden Gate National Recreation Area Grand Canyon National Park Grasslands National Park Gray Lodge State Wildlife Area 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 Gros Morne National Park Gulf of St. Lawrence lowland forests Gwaii Haanas National Park Reserve Heath and Marjorie Angelo Coast Range Preserve Homestead National Monument of America Hopewell Furnace National Historic Site Hot Springs National Park Hovenweep National Monument Hubbard Brook Biosphere Reserve Indiana Dunes National Lakeshore Jasper National Park Jepson Prairie Preserve Joshua Tree National Park Kaweah Oaks Preserve Kejimkujik National Park Kellogg Biological Station LTER Site Kern River Preserve Klamath-Siskiyou forests Knife River Indian Villages National Hist. Site Kootenay National Park Kouchibouguac National Park La Mauricie National Park Lacassine National Wildlife Refuge 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 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) Mesa Verde National 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 Mojave desert Montana Valley and Foothill grasslands Morristown National Historical Park Mount Arrowsmith Mount Rainier National Park Mount Revelstoke National Park National Capital Parks - Central National Capital Region - East Navajo National Monument Nebraska Sand Hills mixed grasslands New England-Acadian forests New River Gorge National River Newfoundland Highland forests 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 Ocmulgee National Monument 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 Padre Island National Seashore Paine Preserve Palouse grasslands Petrified Forest National Park Philip L. Boyd Deep Canyon Desert Research Center Pictured Rocks National Lakeshore Piney Woods forests Pipe Spring National Monument 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 Redberry Lake Biosphere Reserve Redwood National Park Riding Mountain Biosphere Reserve Rocky Mountain Biosphere Reserve Rondeau Provincial Park Roosevelt Vanderbilt National Historic Site Saguaro National Park Saint Croix International Historic Site Saint Lawrence Islands National Park Saint-Gaudens National Historic Site San Joaquin Biosphere Reserve Santa Cruz Island Preserve Santa Monica Mountains National Recreation Area Saratoga National Historical Park Scotts Bluff National Monument Sequoia and Kings Canyon Biosphere Reserve Sevilleta LTER Site Shortgrass Steppe LTER Site Sierra Madre de Oaxaca pine-oak forests Sierra Nevada forests Sleeping Bear Dunes National Lakeshore Snake-Columbia shrub steppe Sonoran desert South Atlantic Coastal Plain Biosphere Reserve South Avalon-Burin oceanic barrens South Central Rockies forests South Florida rocklands Southeastern conifer forests Southeastern mixed forests Southern Appalachian Biosphere Reserve Southern Great Lakes forests Southern Hudson Bay taiga Southwest Nova Biosphere Reserve Sunset Crater Volcano National Monument Tamaulipan matorral Tamaulipan mezquital Tawas Point State Park Tennessee River Gorge Texas blackland prairies Thomas Stone National Historic Site Tonto National Monument 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 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 Wilson's Creek National Battlefield Wind Cave National Park Wupatki National Monument Wyoming Basin shrub steppe Yellowstone Biosphere Reserve Yoho National Park Zion National Park