450 



Mr. F. W. Frohawk on Sexual 



overhead, the males may readily be picked out, and it is just 

 as easy when the birds are nesting to distinguish the males 

 from the females as they fly over their breeding-ground, even 

 at a considerable distance. 



Lapwing, <S • 



There can be but little doubt that the remarkable roundness 

 and great breadth of the primaries enable the males to throw 

 themselves about in the air in the extraordinary manner they 

 do during the breeding-season, while, so far as I can ascertain, 



Text-fiar. 10. 



Lapwing, $. 



it is only the male bird which indulges in these ridiculous 

 aerial performances. 



The other chief sexual differences noticeable in the Lapwing 

 are : — 



Text-figs. 9, 10. — 1st. The relative size of the bill, a character 

 hitherto overlooked. 



