names of the different parts of birds. 35 



Technical Terms of the Bill. 



Bill compressed — When narrowed by the mandibles being- 

 pressed in laterally 



„ cultrated — When each mandible is shaped like a plough- 

 share. 



„ carinated — When each mandible has a ridge or keel. 



„ culminated — When the central ridge of the upper 

 mandible is very prominent, like a falcon's. 



,, culmen — The central ridge of the bill. 



,, depressed — When flattened, like a duck's. 



„ deflected — When the upper mandible is bent down at 

 the point. 



,, imarginated — When either mandible is notched towards 

 the extremity. 



,, inflated — When the sides bulge out. 



,, subulated — Bill long and slender, like an awl. 



„ quadrangular — Of a square form. 



,, carunculated — Having fleshy excrescences, like the 

 wattles of a turkey. 

 Cere — The naked skin at the base of the bill. 

 Tomia — The cutting edges of the bill. 



The Nostrils. 



Lateral — On each side of the central ridge of the bill. 

 Ovoid — Shaped like an egg. 



The Tongue. 



Bifid — Forked at the end, as in the falcon's. 



Extensile — Capable of considerable protrusion, like the wood- 

 pecker. 



Cumbriciform — Having rings, like a worm, as in the wryneck 

 and woodpecker's. 



Legs and Feet. 



Tibia — The feathered part of the leg (the thigh) above the 



tarsus. 

 Tarsus — The under part of the leg to which the toes are 



joined. 



