From The Collaborative International Dictionary of English v.0.48 :
Flamingo \Fla*min"go\, n.; pl. Flamingoes. [Sp. flamenco, cf.
Pg. flamingo, Prov. flammant, F. flamant; prop. a p. pr.
meaning flaming. So called in allusion to its color. See
Flame.] (Zool.)
Any bird of the genus Ph[oe]nicopterus. The flamingoes have
webbed feet, very long legs, and a beak bent down as if
broken. Their color is usually red or pink. The American
flamingo is P. ruber; the European is P. antiquorum.
[1913 Webster]
From WordNet (r) 3.0 (2006) :
flamingo
n 1: large pink to scarlet web-footed wading bird with down-bent
bill; inhabits brackish lakes