584 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



black markings, white tail-spots smaller, and flanks indistinctly streaked 

 with dusky. 



Toung male in nestling pluniage. — Above dull brownish olive, the 

 back very faintly clouded or spotted with dusky; a very narrow pale 

 dull yellowish indistinct bar across rump; upper tail-coverts dusky, 

 margined with light olive; middle and greater wing-coverts broadly 

 tipped with pale yellowish buflf, producing two bands, the greater cov- 

 erts edged with light brownish olive; remiges edged with gray; under 

 parts pale straw yellow, or primrose yellow, thickly streaked on 

 breast, sides, and flanks with dusky olive, the chest so strongly suffused 

 with olive-brownish as to nearly conceal the yellow. 



Young female in nailing plumage. — "Remiges and rectrices slightly 

 paler than in adult; greater and middle wing-coverts just tipped with 

 fulvous, forming two narrow wing-bands; rest of upper parts, sides of 

 head, including orbital region and eyelids, and breast, dark ashy, 

 somewhat lighter on rump. Abdomen, anal region, and crissum pale 

 sulphur-yellow, blotched somewhat indistinctly anteriorly with ashy. 

 Throat pale ashy, with a few yellow feathers intermixed. From a 

 specimen in my collection shot at Upton, Maine, August 10, 1874. 

 This bird was very young, indeed barely able to fly. Several speci- 

 mens a little further advanced show an increased amount of yellow 

 on the throat and abdomen, but are otherwise similar." ' 



Admit male.—L,Qagth. (skins), 105-118 (113.6); wing, 57-64 (60.1); 

 tail, 47.2-51.8 (48.7); exposed culmen, 8.6-9.8 (9); tarsus, 17-18.4 

 (17.8); middle toe, 10-11.2 (10.6).' 



Adult female.— Length (skins), 108-112 (109.8); wing, 54.4-57 8 

 (56-9); tail, 46-48.4 (47.3); exposed culmen, 8.8-9 (8.9); tarsus, 17.2-18 

 (17.5); middle toe, 10.2-11 (10.5).' 



Eastern North America, north to Anticosti Island, Magdalen 

 Islands, southern shores of Hudson Bay (Moose Factory, Albany 

 River, etc.), and in the interior to the Great Slave Lake District (Fort 



1 Brewster, Bull. Nutt. Orn. Club, iii, 1878, 78. 

 '' Ten specimens. 

 ^ Five specimens. 



Specimens from opposite sides of the Alleglieny Mountains average, respectively, 

 in measurements as follows: 



