It's the thick-walled muscular pouch that grinds food in a bird's lower stomach
[DOC] [TLE] gizzard - wikipedia, the free encyclopedia - home [PAR] a gizzard is a secondary stomach that birds use to grind their food before they ... 
thick-walled, muscular pouch in the lower stomach of many birds and reptiles that 
... ham; not a turkey but he beheld daintily trussed up, with its gizzard under its .