Hagdon \Hag"don\ (h[a^]g"d[o^]n), n. (Zool.)
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}.
[1913 Webster]