290 Mr. J. H. Gurncy's Notes on 



baiid^ but in L. rclithyaetus not only the tips, but both edges 

 of the secondaries arc distinctly margined ivith ivhite for a long 

 way up each feather. Again, in L. ichthy actus the tail pre- 

 sents a broad imiform dark band (only the outer feathers being 

 edged with white), whereas in L. affinis &c. the tail is mottled 

 with dark markings, and the band is completely broken up. 

 Other points of difference exist, but to describe them would 

 only l)e confusing, as the above are ample for recognition. 



" I have not, as yet, been able to examine a young bird of 

 the same year as that in which it was hatched, when the plu- 

 mage is fresh. Another ' link ' which is missing is the stage 

 between the following April, when the mantle is mainly grey, 

 but the wings and tail are brown, and the spring after that, 

 when the mantle is wholly grey, but there are still some 

 brown mottlings on the carpals and primary coverts and a 

 little dark on the tail ; the black hood is then assumed for 

 the first time.^^ 



L. ichtJiyaetus must therefore be substituted for L. affinis 

 in the list of Gilgit birds. . 



246. Gelochelidon anglica (Mont.). 



I secured an adult male passing through on 1st August : 

 the black of the head is changing to the winter stage of 

 plumage. Two days later I secured a young bird of the year : 

 the head is white, marked with brown streaks, and the whole 

 back is smeared with brown. 



XXT. — Notes on a ' Catalogue of the Accipitrcs in the British 

 Museum.' by R. Bowdler Sharpe (1874). By J. H. 



GURNEY. 



(Plate X.) 



[Continued from p. 102.] 



I NOW propose to consider the genus Falco in the restricted 

 sense of that term ; but 1)cfore doing so, I am desirous of 

 inserting two corrections, for one of which 1 am indebted to 

 the kindness of Mr. Ridgway, who writes to me as follows : — 

 " I think you are mistaken in believing that ' the first dress 



