Monotypic
 

Identification

A strongly marked 'cookilaria' type petrel. Has a darker crown and nape compared to the similar Cook's and Pycroft's Petrels. In fresh plumage this contrasts strongly with the paler gray mantle and upperparts.
 

Where and When

Nesting (Oct-Mar) is restricted to the island of Mas a Fuera in the Juan Fernandez Islands off central Chile.

Outside the breeding season (i.e. in Apr-Sept), migrates westwards across the central Pacific Ocean, passed southern California and Hawaii towards Japan.
 

Photographs on the web

Literature

McCaskie, G., and D. Roberson. (1992) First record of the Stejneger1s Petrel in California. Western Birds 23: p145-152.