Coat of arms of Walthall

The blazon

or, a chev. vert, betw. three hawks, close, sa. — Crest, an arm, embowed, vested gu. cuff erm. hand clenched ppr. thereon a falcon ppr. close, beaked or.

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.