Diet Overlap

Cerorhinca monocerata (Rhinoceros Auklet)
Phocoena phocoena (Harbor Porpoise)

Common Diet

Clupea harengus (Yawling)
Doryteuthis opalescens (california market squid)

Common Habitat

California Coast Ranges Biosphere Reserve
Channel Islands National Marine Sanctuary
Channel Islands National Park
Farallon National Wildlife Refuge
Gwaii Haanas National Park Reserve
Pacific Rim National Park Reserve
Point Reyes National Seashore
Redwood National Park

Attributes / relations provided by
♦ 1Diving depths, diet, and underwater foraging of Rhinoceros Auklets in British Columbia, Alan E. Burger, Rory P. Wilson, Don Garnier and Marie-Pierre T. Wilson, Canadian Journal of Zoology Vol. 71: 2528-2540 (1993)
♦ 2Summer Diet of the Harbour Porpoise (Phocoena phocoena) in the Estuary and the Northern Gulf of St. Lawrence, Pierre-Michel Fontaine, Mike O. Hammill, Cyrille Barrette, and Michael C. Kingsley, Can. J. Fish. Aquat. Sci. 51(1): 172–178 (1994)
♦ 3CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database