chough / chuff [tʃʌf]
chough – n. – a large black passerine bird of parts of Europe, Asia and Africa with a long, downward-curving red bill, family Corvidae (crows)
chuff – n. & v. – n. – a puffing sound as of a steam engine; v. tr. – 1. to move while emitting such sounds; 2. Brit. slang – to please or delight