Matching Pairs Bird TerminologyOnline version Match these bird terms to their meanings. by Légende X 1 GIZZARD 2 STERNUM 3 KEEL 4 PLUMAGE 5 WINGSPAN 6 MANDIBLE 7 TARSUS 8 MOLT 9 RUMP 10 CREST Muscular stomach grinding up food Seasonal shedding and regrowth of feathers Tuft of feathers atop the head Feathers covering the body Lower back area above the tail Distance from one wingtip to the other Breastbone that anchors flight muscles Upper or lower part of a bird’s beak Ridge on the sternum for flight muscles Lower leg bone between knee and foot