Coat of arms of Wintour

The blazon

sa. a fesse erm. — Crest, a cock-pheasant, close, ppr. ( Another crest, out of a ducal coronet or, a cubit arm, in armour, erect, ppr. garnished of the first, holding in the gauntlet three ostrich s feathers.)

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.