49 



[Vol. xxxi. 



Circus gouldi. A female with the upperparts white, 

 a few scattered brown feathers on the head, back, and 

 wings ; the tail pale ; the underside white, with a few 

 rufous feathers. " Iris pale yellow." Canterbury, New 

 Zealand. 



Accipiter gentilis. An adult female specimen with 

 the upperparts milk-white and the head strongly clouded 

 and streaked with brownish-grey, the rest of the plumage 

 slightly streaked and washed with dirty grey ; the wings 

 and tail with indistinct brownish-grey bars ; the underside 

 white, with pale silvery-grey shaft-stripes and cross-bars. 

 West Siberia, December 1902 (Lorenz) (see p. 51). 



Three males and one immature female with the plumage 

 milk-white, but much more strongly marked with brownish- 

 grey than in the adult. 



$ ? . West Siberia, December 1897 and 1902 [Lorenz] ; 

 $ . Turkestan, 1901 ; $ . Archangel, N. Russia (Henke 

 coll.). 



Dendrocygna arcuata. A specimen showing partial 

 melanism. Received 10. iii. 04 ; died 28. iv. 04. 



Anas chlorotis. A female with the head, neck, and 

 back largely mixed with white. Wanamatu, North Island, 

 New Zealand, January 1894. 



Anas penelope. A male with pale cinnamon-buff plumage, 

 and a few grey streaks on the scapulars ; the abdomen 

 white. 



Anas crecca. A male with the sides of the head metallic- 

 blue instead of green, and the area below the metallic patch 

 dirty white; the throat sooty black, mixed with red and 

 white feathers ; the grey vermiculations abnormally dark ; 

 and the breast with broad black bars. A wild bird shot on 

 the Tring Reservoirs. 



Anas discors. A pure white specimen. British 

 Columbia. 



