2l8 PATONIAGAN EXPEDITIONS: ZOOLOGY. 



has joined the white tip, and the other inner primaries are white termi- 

 nally and only slate color basally. 

 Tail : Pure white. 



Under parts : Including under wing coverts pure white. 

 Bill : Lemon yellow, turning to orange and red at the angle of the 

 gonys. Iris : Greyish white. Tarsi : Olive grey. Toes : Olive grey, with 

 the webs inclined to yellow. 



"Male ad.: Tom Bay, April 5, 1879. Iris clear grey; eyelids red; 

 legs olive. 



"Male juv. : Cockle Cove, February 14, 1879. Eyes black; bill black; 

 legs dark grey. 



"Male juv. : Tom Bay, March 8, 1879. Iris dark brown ; eyelids black ; 

 bill black ; legs grey. 



"Female in changing plumage: Valparaiso, August 13, 1879. Bill 

 grey with black tip ; eyes dark ; legs light grey ; claws black. 



"Female ad.: Peckett Harbour, Straits 

 of Magellan, January 4, 1879. Bill yel- 

 low, the end of lower mandible red ; eye- 

 lids red ; eyes clear grey ; legs greenish. 

 " Male juv. : Puerto Bueno, February 

 21,1 879. Iris dark brown, the lids black ; 

 feet grey. 



"Puerto Bueno, February 20, 1879. 



Lams dominicanus. Winer pattern of T->MI i_i i i j i 



Bill black ; legs dark grey. 



ordinary adults. * J 



"Male: Port Henry, January 28, 



1879. Eyelids red; irides grey; bill yellow, tip of lower mandible red; 

 legs and feet olive-green; claws black." (Sharpe, P. Z. S. 1881, p. 17.) 



The adult female is like the adult male in color. 



Immature birds have the mantle and wings browner. The white on the 

 first five primaries is much reduced if present at all. There is a more or 

 less well defined dark brown subterminal band on the tail. Sometimes 

 this is only indicated by a mottling of the darker color. The head and 

 neck are streaked with greyish brown in a varying degree. The bill is 

 duller and paler in color. 



Young birds of the year (No. 7908, P. U. O. C. (no sex given), Rio 

 Gallegos, Patagonia, 31 May, 1896) are mottled dark brown and grey 

 above and streaked with dark brown on a greyish ground below. Both 



