Least Storm-Petrel Oceanodroma microsoma Rare, mid August to mid October, in the Offshore region.
Habitat: Open ocean.
Best locations: San Diego pelagic trip.
Note: Large flocks of autumn Black and Least Storm-Petrels are regularly found half way between La Jolla and San Clemente Island, right on the line between San Diego and Los Angeles counties. In fact, most of the largest flocks (500-4000) are found just over the Los Angeles County line toward San Clemente Island.