on Birds from Shendi, Sudan. 25 
70. TuRTUR RosEOGRiSEUs (Sund.). 
86 6, 339 d, 26 ? , 35 ? , 36 2, 16i 5, 165 ?, 340 $, 
353 pullus. 
This Dove was exceedingly commoo. Upwards of fifty 
might sometimes be seen sitting in one of the bigger trees 
near the river; it was also well distributed all over the 
desert, but was less numerous there. 
Several nests were found in acacia-bushes at heights 
varying from three to six feet from the ground. They were 
light structures of twigs, very similar to those of the 
European Turtle-Dove. The number of eggs was two in 
every case ; they are white with very little gloss : average 
measurements 29*2 by 23 mm. 
71. TuRTUR DECipiENs Fiuscli & Hartl. 
123 6 , 192 cS , 256 6, 372 ^, 124 $,158 ?. 
This is the same form which has been called Turtur 
ambiguus by Mr. Witherby (Ibis, 1901, p. 266). Mr. 
Witherby found that his specimens from the White Nile, 
and those in the Tring Museum from N.E. Africa, differed 
from the type of T. ambiguus in having slightly longer wings 
and considerably wider tips to the rectrices. But after an 
examination of the specimens in the British Museum, he 
decided not to separate the form found in North-East Africa 
from the West- African T. ambiguus. 
We are inclined to think that it would be more correct to 
separate the two forms, but in any case our birds must be 
called T. decipiens, and not T. ambiguus; the former name 
was published some years before the latter, and was originally 
given to the North-East African form. 
This Dove was very much less numerous than the pre- 
ceding species, from which it was readily distinguished by its 
larger size. It becomes increasingly common as one goes 
southwards from Shendi, which place seems to be about its 
most northerly limit. 
A nest containing two eggs was found in an acacia-bush 
on March 16th. The nest w^as like that of the preceding 
species. The eggs are of a pure white, without gloss, and 
measure 32*1 by 22*5 and 296 by 23 mm. 
