THE CORVWM. 



as complete an equipment as one can imagine a bird to 

 require— a powerful bill, with well-developed nasal plumes — 



Fig. a 



Fig. 3 



Fig. 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 

 perforans digitorum. (From the Catalogue of Osteological Specimens 

 in the Museum of the Royal College of Surgeons. ) 



Fig. 3.— 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 1 



