BIRDS OF NORTH AND MIDDLE AMERICA. 



491 



dusky; iris dark brown; logs and feet intense orange or orange-red 

 (in life) . 



Adults in winter. — Similar to the summer plumage, but pileum 

 white, tinged on occiput and nape with grayish, the side of head 

 with a dusky stripe surrounding eye and extending along upper 

 portion of auricular region; tail with lateral rectrices relatively shorter 

 and broader; bill duller orange, and feet paler or less intense 

 orange-red. 



Young. — Similar to winter adults, but pileum, hindneck, back, 

 scapulars, tertials, and wing-coverts overlaid or washed with brown, 

 this nearly uniform on crown and back, the sides of head tinged 

 with the same; rectrices aU distinctly dusky temiinally, especially 

 on inner webs. 



Downy j/oung'.— Upper parts light buffy brown or avellaneous, 

 irregularly spotted or marbled with black; under parts slightly paler 

 buffy brown, passing into nearly brownish white on chest, breast, 

 and abdomen, the throat usually more or less strongly suffused with 

 sooty ; bill light brownish basally , dusky terminally ; feet pale brownish. 



Adult malc—Wmg, 246-269 (258.4); tail, 151-218.5 (174.2); 

 exposed culmen, 38-42 (39.4); tarsus, 22.5-24 (23.'2); middle toe, 20- 

 22.5 (21)." 



Adult female.— Wmg, 242-264 (255.6); tail, 140-168.5 (158.5); 

 exposed cuhnen, 37-41 (39); tarsus, 21.5-24 (22.8); middle toe, 

 19.5-22.5 (20.8).'' 



Breeding from southern Oregon (Lower Klamath Lake; Tule 

 Lake), Saskatchewan (Saskatchewan River), Manitoba (Lake Mani- 

 toba; Lake Winnipeg; Lake Winnipegosis; Shoal Lake; Waterhen 

 River; Selkirk) southward to interior lakes and marshes of Cah- 

 fornia (tule marches near Sacramento; Eagle Lake; Lake Tahoe), 

 Nevada (marshes near sink of Hmuboldt River; Ruby Lake; 

 Frankhn Lake), Utah (marshes of Utah Lake and Great Salt Lake), 

 northern Colorado, northern Nebraska, Minnesota (Grant, Traverse, 

 and Becker counties), northeastern Ilhnois (Cook County), and 

 southern Ontario (Mohawk Island, in Lake Erie; St. Clair Flats) ; 



o Thirteen Bpecimens. 



& Eleven specimens. 



Locality. 



Wing. 



Tail. 



Cul- 

 men. 



Tarsus. 



Middle 

 toe. 



MALES. 



Ten adult males from coast of Virginia 



Three adult males from California (2) and Nevada (1) 



FEMALES. 



Ten adult females from coast of Vu-gima 



One adult females from '"evada « 



256.8 

 263.7 



254.8 

 264 



176.2 

 167.3 



157.7 

 166 



39.5 

 39.2 



39.1 

 37.5 



23.2 

 23.2 



22.8 

 23 



