On 11 June 1979 we collected a hepatic phase Common Cuckoo (Cuculus canorus canorus) at the mouth of the Tutakoke River, Yukon Delta, Alaska (61?14'N, 165?37'W). The specimen (Univ. of Alaska Museum 3733), an adult female, weighed 85.0 g, had moderate fat, a flattened wing of 216 mm, and ova to 5.0 mm. The occurrence of the bird followed that of a large storm in the south-central Bering Sea which produced westerly winds in excess of 30 knots during the preceding 24-36 h. The bird appeared healthy, making several short flights over a segment of coastal salt meadow. Once it landed within 10 m of a pair of nesting Black Turnstones (Arenaria melanocephala), but the normally highly aggressive turnstones did not respond. The stomach contained parts of adult insects of the families Carabidae, Ostomidae, and probably Cerambycidae, as well as larvae of the superfamily Cucujoidea. Kessel and Gibson (Stud. Avian Biol. No. 1, 1978) and Byrd et al. (Condor 80:309-315, 1978) have recently summarized the occurrence of Cuculus spp. in Alaska. To date, all specimens and sight records of Common Cuckoos have been of the typical gray phase and have come from the western Aleutian Islands,