288 



4 

 In the preparation of the above article I have examined the following specimens : — 



E Mus. H. E. Dresser. 



a > d> b,2 ad. Egypt, summer (Hemprich &; Ehrenberg). <;. Egypt, winter (Hempr. ty Ehr.). d, J ad. 

 Alexandria, e. Madagascar (Cutter). 



E Mus. a A. Wright, 

 a, ad. Spring plumage, near Benghazi, North Africa, 



