1 



152 AVIFAUNA 



58. Clangula clangula (L.). [Brileend]. 



The Museum received 12 specimens in different plumage, 

 most of them from the fresh-water lakes in the neigh- 

 bourhood of Leiden. 



59. Harelda hyemalis (L.). [IJseend]. 



As a rule this duck is a tolerably rare winter visitor; 



in some winters however it appears in no small number. 

 We received the following specimens: 



young (ƒ, 13 November 1904, Nieuwkoop, Zuid-Holland. 



(ƒ, in full dress, 2 December 1905, Veeregat, Zeeland. 

 Presented by Mr. T. M. Pike. 



cf, in change, 24 December 1906, Nieuwkoop. 



cf, in full dress, 7 January 1908, Zuiderzee, near Anna 

 Paulowna, Noord-Holland. 



(ƒ, in full dress, 8 January 1908, Texel. 



9, 11 January 1908, Texel. 



(ƒ, in full dress, 11 January 1908, Texel. 



cT, in full dress, 16 January 1908, den Helder, Noord- 

 Holland. 



cTcfcT, in full dress, 18 January 1908, Texel. 



in full dress, 20 January 1908, Texel, 

 cf, in full dress, 25 January 1908, den Helder. 

 cT? in full dress, 25 January 1908, Texel. 



60. Oidemia nigra (L.). [Zwarte zee-eend]. 



We received 19 specimens, males and females, in different 

 plumage, killed from October till March, and one female, 

 killed 11 June 1908 on the shore at Noordwijk. 



61. Oidemia fusca (L.). [Groote zee-eend]. 



We received 8 specimens, among which only one male 

 in full dress, killed 1 March 1907 in the Veeregat, Zee- 

 land, and presented by Mr. T. M. Pike ; the other ones 

 are females and males in the brown plumage, all killed in 

 November 1904, 1905, 1906 and 1907. 



Notes from the Leyden Museum, "Vol. XXX. 



