406 Mr. T. Ayres on the Ornithology of Transvaal. 
culosa in my last communication (Ibis^ 1877, p. 45). I ob¬ 
tained specimens in the Cbnpat valley, and saw it occasionally 
in the valleys of the Sengel and Sengelen. 
Iris reddish brown; upper mandible wood-brown; under 
mandible, legs, and feet pale slate-eolour. 
■^Calodromas elegans. 
Resident. Seen constantly throughout our journey; and 
we found the eggs excellent eating. 
This species is increasing at Chupat with the increased 
cultivation of the ground. 
*Rhea darwini. 
Resident. Observed almost daily throughout our journey. 
It commences to lay in September; and though I have heard 
of thirty-seven eggs being found in one nest, twenty-seven 
is the largest number I have seen. The nest is a large hollow 
scraped in the ground, slightly lined with grass. The young 
run as soon as hatched; and the male bird will feign lameness 
to draw one away from the nest. The Indians say the eggs 
take six weeks to hatch. In the summer, when the lagoons 
in the camp become dried up, many visit the river Chupat 
to drink, and then fall an easy prey to the colonists^ dogs. 
These, however, mostly consist of birds of the year. At 
this season both old and young occasionally come to the 
river. 
XXX.— Additional Notes on the Ornithology of Transvaal. 
By Thomas Ayres. Communicated by John Henry 
Gurney. 
[Continued from p, 301.] 
[The following notes unfortunately did not reach me in time 
to be incorporated with those which recently appeared in 
^ The Ibis, vide anted, p. 281.—J. H. G.] 
304. Cypselus gaffer, Licht. African White-rumped 
Swift. 
Male, shot at Potchefstroom 11th December. Irides dusky ; 
bill black ; tarsi and feet pale dusky. 
