214 ON BIRDS FROM THE NETHERLANDS. 
coast of Friesland near Cornwerd and was shot on 15 
November 1908 by a fisherman, who thought it was a swan. 
It is an adult male in most perfect plumage. Whether we 
have to do here with a bird escaped from captivity or with 
a wild bird, can not be said with certainty; both possi- 
billities are equally probable. 
Cygnus bewickit Yarrell. 
We purchased two adult specimens, © and 9, which 
have been shot in the middle of March 1909 on the Zui- 
derzee near Kampen. 
Branta bernicla glaucogaster (Brehm). 
According to Sir R. Payne-Gallwey, one may shoot an 
entire winter on the shores of North-Holland, without 
being able to kill, or even to see, a brent with a white 
abdomen (Alphéraky, the Geese of Europe and Asia, 1905, 
p. 161). It is a fact, that the light-bellied brent is a rare 
visitant to our shore, but that it is not to be found here, is 
a mistake. As I have shown in my list of the birds of 
the Netherlands, there are three examples in our old col- — 
lection and this year I received two other examples, a 
female, shot 4 February 1909 on Texel and a female, 
shot 17 February at Noordwijk aan Zee. All the specimens 
of this form in our possession are females. 
Aythia nyroca (Güldenstädt). 
The series of this species has been enlarged with four 
examples from our country, viz.: Q, shot 10 November 
1908 at ter Aar, province Zuid-Holland, two oo’, both 
in nuptial dress, shot 13 March 1909 at Leimuiden, and 
oO in change, shot 19 July 1909 at Nieuwkoop. In one 
of the males shot 18 March there is a large white spot 
on the chin, whereas in the other one there are only a 
few white feathers on the chin. 
Fuligula fuligula (L.). 
Of Fuligula fuligula I received in the last months some 
Notes from the Leyden Museum, Vol. XXXI. 
