THE IBIS. 
THIRD SERIES. 
No. XIV.—APRIL 1874. 
XIII .—Additional List of and Notes on Birds obtained in the 
Republic of Trans-Vaal. By Thomas Ayres. (Commu¬ 
nicated by John Henry Gurney.) 
(Plate III.) 
[Continued from 1 The Ibis/ 1873, p. 286*.] 
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187a. Petrochelidon spilodera (Sund.) (= Hirundo al- 
fredi, Hart. Ibis, 1868, p. 152). Prince Alfred's Swallow. 
Two colonies of these birds now visit us regularly at Pot- 
chefstroom every year, appearing in August. One takes pos¬ 
session of tbe Dutch church, building under the eaves; this 
colony consists of about twenty pairs. The other has taken 
up its quarters under the eaves of the Dopper, or dissenting 
Dutch church, at the other end of the town, and, I think, is 
rather more numerous than the first. 
The greatest enemies they have are the small boys, who are 
continually pelting their nests down, and next to them, the 
* [The specimen included in Mr. Ayres’s list, published in ‘ The Ibis ’ 
for 1871, p. 147, under the name of Drymceca affinis , proves to have been 
wrongly identified by me, and to be referable to D.flavicans (No. 17). 
The present list, in consequence of this error, commences with No. 187a. 
—J. H. G.] 
SER. III.-VOL. IV. I 
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