Diet Overlap

Haematopus bachmani (Black Oystercatcher)
Larus glaucescens (Glaucous-winged Gull)

Common Diet

Katharina tunicata (black katy)
Lottia scutum (plate limpet)
Mytilus californianus (California mussel)
Oedignathus inermis (granular claw crab)
Pollicipes polymerus (leaf barnacle)

Common Habitat

Alaska Maritime National Wildlife Refuge
Alaska Peninsula montane taiga
Aleutian Islands Biosphere Reserve
Aleutian Islands tundra
Baja California desert
British Columbia mainland coastal forests
Cabrillo National Monument
California Coast Ranges Biosphere Reserve
California coastal sage and chaparral
California Floristic Province
California interior chaparral and woodlands
California montane chaparral and woodlands
Central Pacific coastal forests
Channel Islands National Marine Sanctuary
Channel Islands National Park
Cook Inlet taiga
Elkhorn Slough Preserve
Glacier Bay National Park and Preserve
Golden Gate National Recreation Area
Gulf Islands National Park
Gwaii Haanas National Park Reserve
North America
Northern California coastal forests
Northern Pacific coastal forests
Olympic Biosphere Reserve
Pacific Rim National Park Reserve
Point Reyes National Seashore
Puget lowland forests
Queen Charlotte Islands
Redwood National Park
San Juan Island National Historical Park
Santa Cruz Island Preserve
Santa Monica Mountains National Recreation Area

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
♦ 2Wootton, J. Timothy. "Estimates and tests of per capita interaction strength: diet, abundance, and impact of intertidally foraging birds." Ecological Monographs 67.1 (1997): 45+. Academic OneFile. Web. 23 July 2010