What does "whistler" mean?

Whistler: (Zoöl.) (a) The ring ousel. (b) The widgeon. [Prov. Eng.] (c) The golden-eye. (d) The golden plover and the gray plover.

Additional senses

  1. 2.(Zoöl.) The hoary, or northern, marmot (Arctomys pruinosus).
  2. 3.(Zoöl.) The whistlefish.

Sources