thunderbird
    n 1: (mythology) the spirit of thunder and lightning believed by
         some Native Americans to take the shape of a great bird

Thunderbird \Thun"der*bird`\, n. (Zool.)
   An Australian insectivorous singing bird (Pachycephala
   gutturalis). The male is conspicuously marked with black and
   yellow, and has a black crescent on the breast. Called also
   white-throated thickhead, orange-breasted thrust,
   black-crowned thrush, guttural thrush, and
   black-breasted flycatcher.
   [1913 Webster]

Thunderbird

    A complete free, open-source
   e-mail client from the Mozilla Foundation and therefore a
   true code descendent of the e-mail code in Netscape
   Navigator.  The first non-beta release was in late 2004.
   The Firefox web browser is from the same source.

   <Thunderbird Home>.

   (2005-01-26)