Hagdon \Hag"don\ (h[a^]g"d[o^]n), n. (Zo["o]l.)
One of several species of sea birds of the genus Puffinus;
esp., Puffinus major, the greater shearwarter, and
Puffinus Stricklandi, the black hagdon or sooty shearwater;
-- called also hagdown, haglin, and hag. See
Shearwater.