Medium-sized bluish-gray storm-petrel with a forked tail (fork not always visible) and a steep forehead. Underparts are paler with darker contrasting underwings. Patters on the surface of the water to feed.
Medium-sized bluish-gray storm-petrel with a forked tail (fork not always visible). Note small bill, darker gray forehead, and dark ear patch.
Medium-sized bluish-gray storm-petrel with a forked tail (fork not always visible) and a steep forehead. Note dark ear patch and pale upper wing band.
A small, sturdy seabird, heavyset for a storm-petrel. Has long, pointed wings and a long, forked tail. The neck is short and the bill fairly small. The feet do not extend past the tail in flight.
Slightly larger than a Leach's Storm-Petrel, smaller than a Buller's Shearwater.
between robin and crowThe more northerly populations (subspecies furcata), found from northeastern Asia to Alaska, are larger and paler than those that nest from southeastern Alaska southward (subspecies plumbea). However, these differences appear to be clinal—that is, there are intermediate birds where these populations meet. Northern birds tend to feed closer to shore, often alone, while southern nesters often feed farther from shore, frequently in small flocks.
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