CATALOGUE OF BIRDS. ' 



CATALOGUE. 



ORDER. Sixr.ixo PEKCIIEHS. OSCIXES. Birds of this order may be 

 known by three characters:- 1, hind toe on a level with the three anterior toes 



FIG. 1. 



Diagram and Ideal Section of Chipping Sparrow. 



A. External Parts: 1, Bill. 2, Forehead. 3, Crown. 4, Occiput. 0, N"ape, 0, Tiind neck.. 7, Back. 

 8, "Wing. 9, Upper tail eovarts. 10. Under tail coverts. 11, Tibia. 12, Aodomen, 13,BeHy. 14, Breast. 

 15, Throat. 16, Chin. 17, Super ciliary region. 18, Lores, 19, Ear coverts. Ii3, Maxillary. 22, Tarsus. 

 32, Hind toe. 42, Front toes. 52, Tail. 



Internal Parts. A, Tongne B, Larynx. P, Syrinx. C, Windpipe. E, Sterno trr.eheal. T, Bron- 

 chial tube. GG-, Gullet. H, Crop. K, Stomach. J, Proventriculus, I... D,.odtn>m. M, Pancreas. O, 

 Vent. D, Ovaries, Q,, Vertebrae of neck. K, Vertebrae of back. S, Tau toiitb. T, Heart. N. Lungs. V, 

 Keel. I M, Liver. 



B. "Wing of Chipping- Sparrow. 1, Lesser coverts. 2, Middle coverts. 3, Greater coverts. 4, Spu- 

 rious wing. 5, Primaries. 6, Secondaries. 



C. Bill of Cardinal Grosbeak. A, Upper. B. Tower, mandible. D, Nostrils. 



