404 



Adult female nuptial. Very similar to the male plum- 

 age, but the back, scapulars, and throat, are browner. 



Adult winter, male and female. Kesembles the respec- 

 tive adult nuptial plumages. 



Immature, male and female. Top of head, greyish- 

 brown ; back, scapulars, wings, neck, breast, and abdomen, 

 dark brown. 



BEAK. Black. 



FEET. Reddish - brown ; webs, yellowish and fully 

 developed. 



IRIDES. Dark brown. 



EGG. Eeddish-white or yellowish-white in colour, with 

 a few blotches or spots of reddish-brown. The surface of 

 the shell is dull and of a rough texture : only one egg is 

 incubated at a time. 



AVERAGE MEASUREMENTS. 



TOTAL LENGTH 16 in. 



WING 10-5 ,, 



BEAK ... 2 



TARSO-METATARSUS ... ... ... 1 ,, 



EGG ... 2 X 1'4 in. 



