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