The occurrence and behavior of non-breeding Horned Puffins at Black Guillemotcolonies in northern Alaska.

Black Guillemot (Cepphus grylle) Science Article 6


The Black Guillemot (Cepphus grille) and Horned Puffin (Fratercula comicdata) are cavity nesting alcids that typically breed in talus. In Alaska both species breed in rock cavities as far north as Cape Lisburne (D. Roseneau, pers. comm.). No talus or rock cliffs are present north of Cape Lisburne but the Black Guillemot has extended its breeding range to the northern Chukchi and Beaufort seas by breeding in man-made debris.

GEORGE J. DIVOKY, IV&on Bull., 94(3), 1982, pp. 356-358

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