ON BIRDS FROM THE NETHERLANDS. 209 
Harderwijk, of which 7 males and 3 females belong to 
thunbergi, 1 male and 6 females to flava. 
Loxia curvirostra LL. 
Of the common crossbill I received again some examples. 
This species has been observed during all the year in dif- 
ferent parts of our country. 
Leyden Museum, September 1910. 
DESCRIPTION OF PLATE. 
Male of Mierofalco gyrfalco islandus (Brünnich), shot 7 
December 1909 at Rijsbergen (Noord-Brabant). 
Fig. a, upper surface of tail; fig. b, upper surface of 
left wing. 
Notes from the Leyden Museum, Vol. XXXII. 
14* 
