DIAGRAM AND IDEAL SECTION 

 OF CHIPPING SPARROW. 



A 



External Parts 



1, Bill ; '2, Forehead ; 3, Crown : 4, Occiput; 5, Nape; f), 

 Hind neck : 7, Back ; 8, Wing ; J), Upper tail caverts ; 10, Un- 

 der tail coverts ; 11, Tibia: 12, Abdomen; 13, Belley; 14, 

 Brerst; 15, Throat; 16, Chin ; 17, Superciliary region ; 18, 

 Lores ; 19, Ear coverts ; 20, Maxillary ; 22 , Tarsus ; 32, Hind 

 toe; 42, Front toe ; 52, Tail. 



Internal Parts. 



A, Tongue; B, Superior Larynx ; p, Inferior; c. Windpipe ; 

 E, Sterno trachealis ; F. Bronchial tube ; G, G, Gullet ; H, Crop ; 

 K, Stomach; J, Proventriculus ; L, Fold of duodenum, M, 

 Pancreas ; o, vent ; D, ovaries ; Q, Vertebrae of neck ; r. Ver- 

 tebrae of back ; ft, Tail bone ; t, Heart ; n, Lungs ; v, Keel ; 

 T, M, Liver. 



B 



WiNa OF Chipping Sparrow. 

 1 , Lesser coverts ; 2, Middle coverts ; 3, Greater coverts ; 

 4, Spurious ^ving ; 5, Primaries ; 6, Secondaries. 



c 



Bill of Cardinal Grosbeak. 

 A, Upper mandible ; B , Lower mandible ; D, Nostril. 



