Family: Procellariidae, Shearwaters and Petrels view all from this family
Description ALL BIRDS Have uniformly dark brown upperparts, but mainly pale underparts: throat and belly are white and underwing coverts are often mainly pale, but with variable dark mottling. Bill is large, thick, pink, and dark-tipped.
Dimensions Length: 20" (51 cm)
Habitat Nests in Southern Hemisphere; nonbreeding visitor to North Pacific, common May-Aug.
Observation Tips Favors offshore waters; easiest to see on pelagic trips, hard to observe from land.
Range Northwest, Alaska, Western Canada, California
Voice Silent at sea.
Similar Species Buller's Shearwater P. bulleri (W 39-40 in) has gleaming white underparts and gray upperparts boldly marked by black bar on wing coverts. Nonbreeding visitor to North Pacific and locally common May-Aug.
Discussion Large, plump-bodied, relatively broad-winged shearwater. Has a proportionately long, thick neck, large head, and elongated tail end. Flight is impressive and effortless in strong winds, but labored on calm days. Underwing markings are useful in identification.