Source : Webster's Revised Unabridged Dictionary (1913)

Firebird \Fire"bird`\, n. (Zo["o]l.)
   The Baltimore oriole.

Source : WordNet®

firebird
     n 1: the male is bright red with black wings and tail [syn: {scarlet
          tanager}, {Piranga olivacea}, {redbird}]
     2: eastern subspecies of northern oriole [syn: {Baltimore
        oriole}, {Baltimore bird}, {hangbird}, {Icterus galbula
        galbula}]
     3: tropical American flycatcher found as far north as southern
        Texas and Arizona; adult male has bright scarlet and black
        plumage [syn: {vermillion flycatcher}, {Pyrocephalus
        rubinus mexicanus}]