176 HIEROFALCO GYRFALCO ISLANDUS. 
NOTE XIV. 
HIEROFALCO GYRFALCO ISLANDUS (BRUNNICH), 
A NEW BIRD TO THE AVIFAUNA OF THE 
NETHERLANDS 
BY 
Dr. E. D. VAN OORT. 
A few days ago I saw a fine example of a white Gyr- 
Falcon, that has been shot in our country near the village 
Rijsbergen, south-west of Breda, in the province Noord- 
Brabant on the 7th of December 1909. It is in the posses- 
sion of Mr. C. J. Bosman at Scheveningen, who received 
it from the lucky shooter, Mr. Rubert at Princenhagen 
near Breda. The specimen has been stuffed by a taxider- 
mist in Rotterdam, who determined the sex as a female. 
The bird is a rather young specimen of Hierofalco gyrfalco 
islandus (Briinnich). I mention here only its capture, which 
is the first known occurrence of this form in the Nether- 
lands, and hope to give a detailed description of it in my 
annual report on birds from the Netherlands, received by 
our Museum from September till September, as, very likely, 
this interesting specimen soon will make part of our collec- 
tion of indigenous birds. 
Leyden Museum, 2 April 1910. 
Notes from the Leyden Museum, Vol. XXXII. 
