Mr. T. Ayres on the Ornithology of Transvaal. 289 
district; Mr. Ayres has sent me an adult male of each race 
from thence, both shot in December 1883. 
P. verreauxi ranges as far north as Mombasa, from whence 
I received an adult male, which was also recorded in f The 
Ibis J for 1881, p. 127.—J. H. GL] 
Tockus erythrorhynchus (Gmel.). African Red-billed 
Hornbill. 
These Hornbills are plentiful about the river Limpopo, 
both singly and in small companies; in our winter months, 
when fruits are scarce, they may be often found feeding on 
certain bulbous roots which grow plentifully in patches along 
the banks of the river, and of which the Francolins are also 
particularly fond. It is not an uncommon occurrence to flush 
a lot of Francolins, Jardines, Babbling-Thrushes, Spreos, and 
these Hornbills all together; they evidently feed together 
very amicably on much the same diet, though the Spreos, 
no doubt, look out for insects more than for bulbs. 
[Mr. Ayres has sent five specimens of this Hornbill, 
obtained by him in the neighbourhood of the river Limpopo, 
and from these I have taken the following measurements :— 
Culmen. 
Wing. 
Tail. 
in. 
in. 
in. 
Male, shot 9th July .... 
2*90 
7-90 
8-30 
Female, shot 6th July . . 
2-55 
7*20 
8-20 
Female, shot 12th June. . 
2-50 
7-05 
7*45 
Female, shot 9th July . . 
2*45 
7*25 
7’30 
Female, shot 9th July .. 
2-10 
7*15 
7-30 
In all these specimens 
the ear-coverts 
are white, 
but with 
the central portion of each feather slaty black, which causes 
a general effect of dark grey; the feathers above the ear- 
coverts are similarly marked, but with the white in each 
feather much more predominant.—J. H. G.] 
Estrelda erythronota (Vieill.). Black-cheeked Wax- 
bill. 
Male, Ylei Poort, river Limpopo, 5th August, 1885. 
This is not a common species on the banks of the Limpopo, 
but when found it is generally in small companies amongst 
