300 
Mr. M. J. Nicoll —Contributions 
contour feathers in spring, but I do not think that the 
quills are shed then. Capt. Jenldnson informs me that in 
March 1908 he saw an almost pure white example near 
Mazghouna in the Giza Province. 
58. Motacilla citreola Pall. 
I include this Wagtail among the birds of Giza on the 
strength of a single immature example shot by Capt. J. W. H. 
Seppings, not far from the Pyramids, on September 18th, 
1907, and now in my collection. I have matched this 
example with specimens in the British Museum. It was 
doubtless a straggler, as the winter-quarters of the species 
are much further to the eastward. It is not unlikely, 
however, that wanderers should occasionally reach Egypt, 
as specimens have been obtained as far west as Heligoland 
and in Italy. 
59. Motacilla flava flava. 
Motacilla flava Shelley, p. 128. 
The Blue-headed Wagtail is a common visitor during the 
autumn and spring migrations. I have several specimens 
shot in September at Giza. 
[60. Motacilla flava borealis. 
Though Capt. Shelley does not mention this form as 
occurring in Egypt, and though I have up to the present 
time obtained no examples here, I include it amongst the 
birds of Giza, as there can be no doubt of its occurrence 
on migration. Hartert (Yog. d. pal. Fauna, Heft iii. 
p. 292) mentions it as occurring in Egypt, and I have a skin 
of an adult male procured by Mr. A. L. Butler in Khartoum 
in autumn. Up to the present time I have had little oppor¬ 
tunity of collecting migrating Wagtails in Egypt, and though 
thousands pass through the Province of Giza, even within a 
mile of the Zoological Gardens, I have seldom seen them 
actually inside the walls.] 
61 . Motacilla flava melanocephala. 
Motacilla melanocephala Shelley, p. 130. 
The Black-headed Wagtail is a regular spring and autumn 
