525 
Birds from British East Africa. 
187. Sarcidiornis africana. Knob-billed Duck. 
Sarcidiornis africana Strickl. 
Iris dark brown ; legs and feet dark plumbeous. 
188. Chenalopex aegyptiaca. Egyptian Goose. 
Chenalopex cegyptiaca (Linn.). 
Iris yellow-brown ; bill purplish-pink ; legs light pink. 
189. Anas undulata. Yellow-billed Teal. 
Anas undulata Dubois. 
Iris brown ; bill yellow, patch on culmen black ; legs black. 
The commonest Duck wherever we went in East Africa 
and excellent for eating. 
190. Querquedula circia. Garganey. 
Querquedula circia (Linn.). 
Iris brown; bill slate-coloured ; legs dusky. 
191. Querquedula hottentotta. Hottentot Teal. 
Querquedula hottentotta Smith. 
Bill dark slate-blue ; legs black. 
192. Pcecilonetta erythrorhyncha. Crimson-billed 
Duck. 
Poecilonetta erythrorhyncha (Gmel.). 
Iris brown; bill purplish-pink ; legs black. 
A fairly plentiful species at Naivasha. 
193. Thalassornis leuconotus. White-backed Duck. 
Thalassornis leuconotus Eyt. 
Iris dark brown; bill dusky; legs black. 
The White-backed Duck was comparatively scarce at 
Naivasha when I was there, and was very shy and difficult to 
approach; only two specimens were obtained. 
194. Columba guinea. South-African Speckled Pigeon. 
Columba guinea Salvad. 
Iris orange; bill black ; legs light red. 
195. Turtur lugens. Bed-eyed Turtle-Dove. 
Turtur lugens (Rupp.). 
The Red-eyed Turtle-Dove was obtained at Kapiti, bat 
