BIKDS OF ]SrORTH AND MIDDLE AMERICA. 



73 



tipped with pink; wings and tail dusk}', the lesser and middle wing- 

 coverts broadly tipped with pink, the greater coverts, primary coverts, 

 and remiges edged with the same; rectrices edged with pale grayish 

 or grayish white, usually more or less tinged with pink; bill entirely 

 black; legs and feet black. 



Adult male in vnnter. — Similar to the summer male, but bill yel- 

 lowish, tipped with dusky, the pink markings of a softer hue, and 

 feathers of breast, etc.. narrowly margined with paler. 



Adult fenude. — Quite similar in coloration to the male, with the 

 same seasonal differences: possibly, but very doubtfully, averaging a 

 very little duller in colors.^ 



Young. — Uniform grayish Ijrown, more or less washed with a more 

 umber tint; wings and tail dusky slate, the feathers margined with 

 paler; edges of greater wing-coverts and tertials dull buff}-; no trace 

 of pink on tail-coverts, etc.. nor of gray or black on head. 



Adult male.— \^^wg\h (skins), 177. 80-213. 36 (195.07); wing, 111.76- 

 124.21 (118.36): tail, 72.64-85.09 (80.26); exposed culmen, 13.46-15.24 

 (14.22): depth of bill at base, 8.89-10.67 (9.91): tarsus, 23.37-25.40 

 (24.13); middle toe, 16.51-19.81 (18.03).- 



Adult female. —\j^\\%\h (skins), 182.88-198.12 (190.25); wing, 109.22- 

 123.70 (114.30): tail. 73.66-82.04 (77.22); exposed culmen, 13.21-15.24 

 (14.48): depth of bill at base, 9.40-10.67 (9.91); tarsus, 23.11-25.65 

 (24.38); middle toe, 17.27-19.81 (18.03).' 



Breeding, and resident, on islands of Bering Sea (St. Matthews 

 Island, Otter Island. Pribilofs, Aleutians, Commander group,), Shu- 



^ This statement is of course based upon the material which I have been able to 

 examine, and if incorrect many sj^ecimens have been wrongly determined as to sex. 

 ^ Twenty-one specimens. 

 ^ Eleven specimens. 

 Series from different localities average as follows: 



Wing. 



Ex- 

 Tail, posed 

 culmen. 



Depth 



of bill 



at base. 



Middle 

 toe. 



Eight specimens from Pribilof Islands and Otter 

 Island 



Ten specimens from Aleutian Islands (Unalashka 

 to Adakh Island) 



Three specimens from Commander Islands (Kam- 

 chatka ) 



117. 86 

 117. 60 

 121.92 



Six specimens from Pribilofs and Otter Island ' 113. 28 



Three .specimens from Aleutians (Attu and Kyska ] 



islands) I 112.78 



Two specimens from Commander Islands (Copper 



Island ) I 119. 13 



81.28 I 14.48 

 78.49 ; 14.22 

 83.06 13.9; 



78.23 

 74. 42 



14.48 

 14.22 

 14.73 



9.91 

 9.6.5 

 10.67 



9.65 



10.16 

 10.67 



24. 38 

 24.13 

 25.15 



24.13 

 24.64 

 25. 15 



18.03 

 IS. 03 

 IS. 80 



17.78 

 18.28 

 19. 05 



