Diet Overlap

Ameiurus melas (Black bullhead)
Aythya affinis (Lesser Scaup)

Common Diet

Hyalella azteca (Scud)

Common Habitat

Amistad National Recreation Area
Audubon National Wildlife Refuge
Buffalo National River
California Coast Ranges Biosphere Reserve
Canyonlands National Park
Chickasaw National Recreation Area
Grasslands National Park
Indiana Dunes National Lakeshore
Jean Lafitte National Hist. Park & Preserve
Lacassine National Wildlife Refuge
Lake Meredith National Recreation Area
Land Between the Lakes Biosphere Reserve
Little River National Wildlife Refuge
Niagara Escarpment Biosphere Reserve
Redwood National Park
Saint Croix International Historic Site
South Atlantic Coastal Plain Biosphere Reserve
Southern Appalachian Biosphere Reserve
Upper Miss. River Nat'l Wildlife Refuge
Voyageurs National Park

Attributes / relations provided by
♦ 1Patterns of prey use by lesser scaup Aythya affinis (Aves) and diet overlap with fishes during spring migration, Kimberly A. Strand, Steven R. Chipps, Sharon N. Kahara, Kenneth F. Higgins, Spencer Vaa, Hydrobiologia (2008) 598:389–398