ORNITHOLOGICAL EXPLORATIONS. 



279 



cured. lu the autumn the last one was seen on one of the last days of 

 September. 



None were seen on the islands. 



As a good and detailed description of this bird in summer plumage is 

 difficult to find in the literature, T have thought it useful to present the 

 following one, origiually prepared by Mr. Eobert Eidgway : 



$ ad., summer plumage, U. S. Nat. Mas. No. 89152; L. Stejncger, No. 1238. Petro- 

 paulski, Earn., June 29, 1882. 



Pileum grayish browu (more fulvous anteriorly), distinctly streake'd with black, 

 the series of streaks along each side of crown much the broadest ; nape, back, scapu- 

 lars, rump, upper tail-coverts and middle pair of tail-feathers uniform brownish gray; 

 the feathers of the back, also the longer upper tail-coverts, with very indistinct darker 

 shaft-streaks, the rump tinged with light olive green ; wings brownish gray, but de- 

 cidedly tinged with yellowish olive, especially on outer edges of primaries and their 

 coverts; middle coverts blackish dusky (in distinct contrast with prevailing color of 

 wing), broadly margined terminally with dull whitish; greater coverts also blackish 

 centrally, but this mostly concealed, and the tips of the feathers somewhat lighter 

 than their edges, but not sufficiently so to produce a distinct bar. A distinct super- 

 cilia^-y stripe of dull buffy whitish, bordered below by a dusky loral and postocular 

 line; a broad and continuous malar stripe reaching to side of neck, with whole chin 

 and throat absolutely immaculate buff, the throat bordered on each side by a subma- 

 lar black streak, broken posteriorly into rather sparse specks; jugulum fainter buff, 

 but this soon fading into dull white on breast and other lower parts; entire jugulum 

 and upper breast very heavily spotted with brownish black, their markings begin- 

 ning very abruptly (with a concave outline) and continued backward along the sides, 

 but becoming gradually narrower, until on the flanks they form narrow and rather 

 indistinct streaks ; whole belly, anal region, and crissum absolutely immaculate. 

 Eectrices (except middle pair) brownish dusky, the outer pair with most of the outer 

 web and a considerable portion of the inner web (extending along shaft for about 

 32"""), the next with a terminal spot only about 10""™ long, the other rectrices without 

 whitish on inner webs; outer webs of all strongly tinged with olive yellow toward 

 bases. 



First, second, third, and fourth quills longest, and very nearly equal, and reaching 

 about 10™™ beyond tips of tertials. 



List of specimens collected. 



No, 89152. — Iris dark brown. BiU homy brown, lower mandible at base, and angle of mouth, flesh- 

 colored. Teet brownish flesh-color. 



No. 92663 — Iris dark brown. Upper mandible and tip of lower mandible horny blackish brown, 

 basal part of the latter flesh-colored. Feet light grayish flesh-color, joints a little darker. Testes 

 largo, swollen 



