Coat of arms of Ostrich

The blazon

gu. three fishes, haurient, ar. betw. nine crosslets fitchee of the second. — Crest, an ostrich s head, erased, az. in his mouth a horseshoe or. O Sul lev an, [Ireland,] per pale, vert and ar. ; on the first, a buck pass. ppr. ; on the second, a boar pass, per pale, sa. and ppr. ; on a chief or, two lions ramp, combatant, gu. supporting with their fore paws a sword entwined with a serpent. — Crest, on a ducal coronet, a bird, ppr. O Sullivan Bearra, [Ireland,] per pale, sa. and ar. a fesse betw. two boars pass, that in chief to the dexter, the one in base to the sinister, all OS w counterchanged. — Crest, on a serpent vert, a moorcock, sitting, ppr.

A blazon is the description of a coat of arms in the technical language of heraldry. The drawing comes from that text, and from nothing else.