701 Mr. W. L. Sclater on Birds collected 
It is usually observed in pairs perclied on the tops of 
bare trees, and when approached flies round in large 
circles high up out of shot, keeping up a continuous dis¬ 
cordant cry. On the wing it often indulges in sudden 
tumbles, rising again abruptly when within a few feet of the 
ground. It often mobs hawks and crows that happen to pass 
near it. I have always observed that the bird so mobbed 
makes off as fast as it can, and never attempts to retaliate. 
It feeds entirely on insects, and will congregate in numbers 
in company with the Drongos around grass-fires to catch 
grasshoppers, beetles, and other insects driven out by the 
flames. 
The soft parts of an adult are :—Irides hazel; bill black ; 
legs and toes dark greenish yellow.] 
402. CoRACIAS SPATULATUS. 
P. Coguno, Aug., Sept. (2). 
So far as I am aware the Racquet-tailed Roller has 
not hitherto been obtained in Portuguese East Africa, but 
within South African limits only in Rhodesia. 
[I have not seen this Roller elsewhere than in the Inham- 
bane district of Portuguese East Africa, and even there, 
although several individuals were seen, it could not be said 
to be plentiful. It was observed singly, and I remarked that 
it was not so noisy as C. caudatus . It generally sat on the 
tops of small bushes and trees or on the lower branches of the 
larger ones. I found it rather wary, and when disturbed it 
merely moved off to some distant position, never circling 
round high up as does C. caudatus . 
The soft parts of an adult are :—Irides brown ; bill black; 
legs and toes greenish or greenish yellow.] 
403. CoRACI AS MOSAMBICUS. 
Tv. Klein Letaba, Sept. (1) ; P. Tete, Aug. (1). 
[I only noted the Purple Roller at Klein Letaba, where 
it was fairly plentiful, and in the Tete district, where it 
was scarce. It is always observed singly, and generally 
frequents well-timbered country, and is seen either perched 
on the middle branches of the trees or on the ground 
