[horse] Rainbird was an Australian thoroughbred racehorse who won the 1945 Melbourne Cup. Ridden by Billy Cook she carried just 7st 7lb (48 kg) to victory in the Cup, winning by a margin of 2 ½ lengths. ...
Found on
http://en.wikipedia.org/wiki/Rainbird_(horse)

Rainbird is a name given to several birds, especially the black-billed cuckoo and the yellow-billed cuckoo. They get their name from the belief that they call frequently before a rain storm.
Found on
http://www.probertencyclopaedia.com/browse/BR.HTM
No exact match found.