-^ Fauna : Birds 



all of them discovered by Biittikofer. But in common with 

 the rest of forested West Africa — the Guinea Coast especially, 

 from Senegambia to the Cameroons — Liberia presents in its 

 avi-fauna, as in its " Miocene " mammalia, affinities with the 

 regions of Eastern Asia (Burma, Malay Peninsula and Archi- 

 pelago). This is due, no doubt, to the survival of forest- 



305. THE BLACK AND WHITE CKOW {CORVUS SCAPULATUS) 



haunting forms in this part of West Africa which have become 

 extinct in the deforested regions separating Central Africa 

 from Indo-China. Many of these Liberian and West African 

 types are continued in their distribution right across Africa 

 to the territories north of the Victoria Nyanza (Uganda 

 Protectorate), 



VOL. II 785 18 



