1922.] Colled'ion of Birds nmch' in the Sudan. 697 



in winter, in Egypt at any rate, adults of this species, 

 C. hiaticula timdrce, and ('. ale.vandrimis have the collar and 

 frontal band replaced by brown. 



True adults of the last-named assume, after tlie autumn 

 moult, a bright chestnut crown to the head. 



Erolia minuta minuta (Leisler). 



(^ . Um liuaba, Kordofan, Dec. 1!)20. (J . Sennar, Jan. 

 1921. 



Chettusia leucura (Lichtenstein). 

 $ . Um Ruaba, Kordofan, Dec. 1920. 



Pluvianus aegyptius (Linnreus). 



1 c?. Sennar, Jan. 1921. 2 $. Singa, Jan. 1921. 



Sarciophorus tectus Boddaert. 



(^. Um Ruaba, Kordofan, Dec. 1920. 



Hoplopterus spinosus (Linnaeus). 



4 c?,3 ?. Kordofan, Berber, and Blue Nile, Dec. 1920 

 and Jan. 1921. 



Sudan examples arc darker on the upper |)arts, and have 

 consistently shorter wings than our Egypti:ni exam|tles in 

 the Giza Museum. 



(Edicnemus senegalensis Swainso;i. 



Ic?, 2? . Singa, Jan. 1921. 



Birds from the Blue and White Niles in our collection at 

 Giza are slightly smaller in the wing than Egyptian birds. 

 I could not, how^ever, separate the latter on comparing them 

 with a large series at Tring. 



Machetes pugnax (Linnjvus). 



2 (^ . Singa, Jan. 1921. 



Tringa hypoleuca Linnaeus. 



Seven. Singa and Sennar, Jan. 1921. 



Tringa glareola Linnreus. 

 ? . Sennar, Jan. 1921. 



Tringa ocrophns Linna3us. 

 ? . Sennar, Jan. 1921. 



