500 On British-East-African Birds. 
31. Polyboroides typicus Smith; Shelley, B. Africa, i. 
p. 153 (1896). 
ad. N’gong, Oct. 1898. 
Shot in the middle of the forest. 
32. Serpentarius serpentarius (Miller) ; Shelley, B. 
Africa, i. p. 154 (1896). 
Very common all over the open plains. Chief food, lizards 
and grasshoppers. 
33. Anas sparsa Smith; Sharpe, Hand-1. B. i. 216. 
a , ad. N'gong, October 1898. 
This Duck can be seen on any of the small swamps or 
rivers in the Ukamba Province after the rains have begun in 
October till early in January. 
34. Ibis jEthiopica (Lath.) ; Shelley, B, Africa, i. p. 155 
(1896). 
a. Athi river, Sept. 1899. 
A very rare visitor. 
35. Balearica pavonina (Linn.); Shelley, B. Africa, i. 
p. 186 (1896). 
Very common on the Nairobi river. Roosts on the bare 
trees at night in large flocks. 
36. Eupodotis kori (Burch.) ; Shelley, B. Africa, i. 
p. 186 (1896). 
a , ad. Athi river, Sept. 1899. 
Shot by my wife with a rifle at 250 yards. 
37. Oxyechus tricollaris (V.) ; Sharpe, Cat. B. Brit. 
Mus. xxiv. p. 247. 
No. 156, d j uv * Athi river, Sept. 12, 1899. 
This bird arrives in large numbers with the October and 
April rains, and disappears as soon as the country is dry, 
though an occasional specimen may be seen on any large 
swamp or sheet of water all the year round. 
38. Tringoides hypoleucus (Linn.); Sharpe, Cat. B. Brit. 
Mus. xxiv. p. 456 (1896). 
No. 11, ? ad. Athi river, Sept. 7, 1899. 
