Birds from British East Africa . 523 
174. Ardea melanocephala. Black-necked Heron. 
Ardea melanocephala Shelley. 
Iris yellow; bill black, lower mandible yellow-green; legs 
greenish-brown. 
The Black-necked Heron was common at Naivasha. 
175. Ardea ralloides. Squacco Heron. 
Ardea ralloides Reichen. 
Iris yellow; bill yellowish • legs dark green. 
176. Nycticorax griseus. Night-Heron. 
Nycticorax griseus L. 
The Night-Heron was not seen at Naivasha, but was 
obtained on a small stream near the Athi. 
177. Ardea pusilla. Red-necked Little Bittern. 
Ardea pusilla Vieilh 
Iris yellow; upper mandible black, lower mandible 
greenish; legs greenish-yellow. 
This species is probably commoner than might be supposed, 
but owing to its skulking habits it is seldom seen. A 
female was shot at a small pool on the Athi Plains on 
Feb. 14th. 
178. Herodias alba. Great White Heron. 
Herodias alba Gray. 
Iris yellow ; bill yellow ; legs greenish. 
179. Mesophoyx brachyrhyncha. Little Egret. 
Mesophoyx brachyrhyncha Sharpe. 
The Little Egret was very common at Naivasha. 
180. Bubulcus lucidus. Buff-backed Heron. 
Bubulcus lucidus (Rafinesque). 
Iris yellow; bill yellowish; legs dark green. 
181. Butorides atricapillus. African Black-headed 
Heron. 
Butorides atricapillus (Afz.). 
Iris yellow; upper mandible black, lower yellow-green; 
legs yellow and brown. 
This little Heron was not uncommon on the small streams 
