Diet Overlap

Podiceps auritus (Horned Grebe)
Aechmophorus occidentalis (Western Grebe)

Common Diet

Clupea pallasii pallasii (Pacific herring)
Leptocottus armatus (Cabezon)

Common Habitat

Audubon National Wildlife Refuge
Badlands National Park
Banff National Park
Big Thicket Biosphere Reserve
Cabrillo National Monument
California Coast Ranges Biosphere Reserve
Canadian Aspen forests and parklands
Carolinian-South Atlantic Biosphere Reserve
Channel Islands National Marine Sanctuary
Channel Islands National Park
Creighton Ranch Preserve
Curecanti National Recreation Area
De Soto National Wildlife Refuge
Death Valley National Park
Deer Flat National Wildlife Refuge
Elk Island National Park
Elkhorn Slough Preserve
Farallon National Wildlife Refuge
Glacier Bay National Park and Preserve
Glen Canyon National Recreation Area
Golden Gate National Recreation Area
Grasslands National Park
Gray Lodge State Wildlife Area
Gulf Islands National Park
Gwaii Haanas National Park Reserve
Indiana Dunes National Lakeshore
Jasper National Park
Kootenay National Park
Lake Chelan National Recreation Area
Lake Roosevelt National Recreation Area
Lanphere-Christensen Dunes Preserve
Lava Beds National Monument
Mid-Continental Canadian forests
Mojave and Colorado Deserts Biosphere Reserve
Montana Valley and Foothill grasslands
Mount Arrowsmith
Nez Perce National Historical Park
Niagara Escarpment Biosphere Reserve
North America
North Central Rockies forests
Northern mixed grasslands
Northern short grasslands
Northern tall grasslands
Olympic Biosphere Reserve
Pacific Rim National Park Reserve
Padre Island National Seashore
Paine Preserve
Point Reyes National Seashore
Prince Albert National Park
Redberry Lake Biosphere Reserve
Redwood National Park
Reserva de la Biosfera El Vizcaino
Riding Mountain Biosphere Reserve
Rocky Mountain Biosphere Reserve
Saint Croix International Historic Site
San Juan Island National Historical Park
Santa Cruz Island Preserve
Santa Monica Mountains National Recreation Area
Sevilleta LTER Site
Shortgrass Steppe LTER Site
Virginia Coast Biosphere Reserve
Voyageurs National Park
Waterton Biosphere Reserve
Western Great Lakes forests
White Sands National Monument
Yellowstone Biosphere Reserve
Yoho National Park
Zion National Park

Attributes / relations provided by
♦ 1Food Web Relationships of Northern Puget Sound and the Strait of Juan de Fuca : a Synthesis of the Available Knowledge, Charles A. Simenstad, Bruce S. Miller, Carl F. Nyblade, Kathleen Thornburgh, and Lewis J. Bledsoe, EPA-600 7-29-259 September 1979