Diet Overlap

Pterodroma ultima (Murphy's Petrel)
Grampus griseus (Risso's Dolphin)

Common Diet

Ancistrocheirus lesueurii (sharpear enope squid)
Onychoteuthis banksii (common clubhook squid)

Common Habitat

California Coast Ranges Biosphere Reserve
Farallon National Wildlife Refuge
Point Reyes National Seashore
Redwood National Park

Attributes / relations provided by
♦ 1CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database
♦ 2Diet of Risso’s dolphin (Grampus griseus) in the western Mediterranean Sea, CARMEN BLANCO, M ÁNGELES RADUÁN and JUAN ANTONIO RAGA, SCIENTIA MARINA 70 (3) September 2006, 407-411, Barcelona (Spain)