446 Mr. F. W. Frohawk on Sexual 



Siberian examples. Though I have recognised N. c. ham- 

 tschatkensis as a subspecies in my book on Palsearctic birds, 

 it is by no means sufficiently established, and a larger series 

 should be compared. 



[Two small Hocks of half a dozen individuals each were met 

 with, one at Gigalowa and the second a little further down 

 the river. The birds utter a strong squeaking note and 

 appear to prefer the thickets of pines. Those obtained in 

 June were from one flock.] 



82. Corvus corone orientalis Eversm. 

 Corvus orientalis Eversmann, Add. Pall. Zoogr. fasc. ii. 

 p. 7 (1841 : Narym River). 



? ad. Gigalowa, 7. vi. 1903. (No. 11.) 



cJ ad. Yakutsk, 22. vi. 1903. (No. 119.) 



<J ad. 200 miles below Yakutsk, 1. vii. 1903. (No. 157.) 



XXXI. — On Sexual Variation in the Wing of the Lapwing 

 (Vanellus vulgaris). By F. W. Frohawk, M.B.O.U., 

 F.E.S. 



Although the Lapwing is one of the birds most easily 

 obtained in the flesh for six months of the year, yet 

 ornithologists have apparently overlooked a very striking 

 sexual character in the formation of the wing, as there is no 

 reference whatever to it in any of the principal works on 

 British birds. The following remarks may therefore be 

 of sufficient interest to call attention to what I con- 

 sider to be a good sexual character of this species, and 

 a point probably worthy of consideration in other species 

 possessing a general similarity in pattern and coloration of 

 plumage. 



Seebohm in his ' British Birds ' says : — " The female 

 Lapwing has less metallic gloss on the feathers, but other- 

 wise scarcely differs from the male, except in having a 

 shorter crest and in having the chin and throat marked with 

 white, the white on the throat of the young females being 



