Large, bulky shorebird. Dark overall with thick red bill, staring yellow eye, and thick, light pink legs. Exclusively coastal, favors rocky shorelines where it feeds on shellfish and other invertebrates. Usually in pairs or small flocks. Occurs from Alaska to northern Baja. Listen for loud yelps and whistles, often in a rapid series when excited. Hybrids with American Oystercatcher occur locally in southern California and Baja; look for messy spotting on the belly.