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