Coat of arms of Wood

The blazon

or, on a pile az. three martlets of the first, a chief. — Crest, a hawk, close, ar. beaked, jessed, and belled or, standing on a lure ppr. [ Gi'anted 1586.]

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.