ember-goose

from The Collaborative International Dictionary of English v.0.48

Ember-goose \Em"ber-goose`\, n. [Cf. Norw. embergaas, hav-imber,
   hav-immer, Icel. himbrin, himbrimi.] (Zo["o]l.)
   The loon or great northern diver. See {Loon}. [Written also
   {emmer-goose} and {imber-goose}.]
   [1913 Webster]