BREEDING PHENOLOGY AND MID-SEASONAL SOCIAL BEHAVIOR OF THE SOOTY GUILLEMOT ON TEURI ISLAND, JAPAN

Abstract

The breeding biology of the genus Cepphus (Alcidae) is represented in the literature for two of the three species: Cepphus grylle, the Black Guillemot, and Cepphus columba, the Pigeon Guillemot (Asbirk 1978, 1979a and b; Cairns 1978, 1979, 1980, 1981; Drent 1965; Hyde 1936, 1937; Preston 1968; Storer 1952; Thoresen and Booth 1958; Winn 1950). Notations within larger compilations (Dement'ev and Gladkov 1951; Kozlova 1957) and a short paper by Nazarov and Labzyuk (1972) have been the only reports published on the habits of Cepphus carbo, the Sooty (or Spectacled) Guillemot.