THE CORVID^E. 



as complete an equipment as one can imagine a bird to 

 require a powerful bill, with well-developed nasal plumes 



FlG.2 



FIG. 3 



pic. 2. Foot of Rook, dissected so as to show the arrangement of the 

 deep plantar tendons : F. L. H. flexor longus hallucis ; F. p. D. flexor 

 perjorans digitorum. (From the Catalogue of Osteological Specimens 

 in the Museum of the Royal College of Surgeons.) 



p IG <, Plantar surfaces of foot of Rook, to show the proportions of the 

 toes in a typical Passerine bird. (From the same.) 



a compact and regular plumage strong wings and tail, with 

 every series of wing-covert beautifully patterned and, lastly, 



B 2 



