ON BIRDS FROM THE NETHERLANDS, 39 
lands, has been shot 5 December 1910 at Serooskerke on 
Schouwen, province Zeeland. This specimen is, like the 
first one, in very good condition and shows no traces of 
confinement. 
Netta rufina (Pallas). 
I received two females, shot at Nieuwkoop, province 
Zuid-Holland, 7 August 1911. Of this, in the Netherlands 
very rare species, we possess at present 12 specimens shot 
in our country (see Notes Leyden Mus. 1905, p. 196). 
As examples of this species have been observed in the end 
of May of this year in our country, it is very likely that 
it has been nesting here, 
Aythia nyroca (Güldenstädt). 
This year I received only one example, a female, shot 
29 August at Nieuwkoop, province Zuid-Holland. 
Grus grus (L.). 
A fine old male was caught March 20th near Deurne, 
province Noord-Brabant, and sent to our Museum. Speci- 
mens shot in spring in the Netherlands are rare in collec- 
tions of native birds. 
Vancllus vanellus (L.). 
An interesting colour-variation of the common lapwing 
was shot at Wassenaar, August 17th 1911. Only the 
upper side of the wings is of normal colour, though some- 
what darker. The outer quills are however wholly black. 
The inner under wingcoverts and the axillaries are black. 
The other parts are dull black with a faint olive-green 
gloss, the upper tailcoverts with steel-blue gloss. On the 
head, the chin, the lower neck, the back, the flanks and 
among the upper tailcoverts there are some white feathers. 
The under tailcoverts are black with green gloss. The tail 
is black, also the bill and the feet. 
Notes from the Leyden Museum, Vol. XXXIV. 
