BIRDS OF NORTH AND MIDDLE AMERICA. 597 



h. Coloration paler, inon' tiiwny; slii,'litly siiiallcr (adult male averaging, wing 51.7, 

 exposed euhnen 14, tarsiiH lit. 2; adult female, wing 50, exposed eulmen 14.2, 

 tarsus 19.2). (Unalaska Island, Aleutian chain, and St. George Island, Pribi- 

 lof group, Alaska. ) Olbiorchilus alascensis ( p. 602 ) 



hb. Coloration darker, more sooty; slightly larger (adult male averaging, wing 54, 

 exposed eulmen 15, tarsus 20; adult female, wing 5J, exposed eulmen 15, 

 tarsus 20). ( Westernmo.st Aleutian Islands.) . .Olbiorchilus meligerus ( p. 604) 



OLBIORCHILUS HIEMALIS HIEMALIS (Vieillot). 

 WINTER WREN. 



Adults {ibexes alike). — Above nifescent l)ro\vii (between inuiiuiiv 

 brown and prouts brown), more strongl}' nifescent posteriorly, the 

 back, scapulars, and rump more or less distinctly barred with dusky, 

 often with more or less distinct whitish bars immediately succeeding 

 the dusky ones; feathers of rump with concealed rourldish spots of 

 white, their basal portion dark slate color; tail light chestnut-])rown 

 or rufescent mars brown, narrowly (sometimes indistinctly) })arred 

 with dusky; wings similar in color to back, etc. (slightly less reddish 

 than tail), more or less distinctly barred with dusky, -the outermost 

 primaries with dusk}- bars much broader and interspaces buffy or 

 whitish; tip of middle coverts usually with a small mesial streak or 

 spot of whitish; a narrow superciliary stripe of brownish butly ; a more 

 or less distinct narrow postocular stripe of l)rown: suborl)ital and 

 auricular regions brownish buffy, narrowly streaked (moie or less 

 distinctly) with brown; malar region, chin, throat, and chest (some- 

 times median portion of breast, more rarely abdomen also) light wood 

 brown or pale cinnamon, the feathers usually obsoleteh- paler mesiall}', 

 the lower throat and chest sometimes speckled with dusky: rest of 

 under parts more or less densely speckled or vermiculated with duskv 

 on a pale wood brown or cinnamon ground-color, these markings heavier 

 and more regularly transverse, on flanks; under tail-coverts clear riistv 

 brown, barred with black and with a V-shaped subt(M-minul mark of 

 white; axillars and under wing-coverts pale grayish brown or dull 

 grayish white, the former faintly barred terminally with darker, the 

 latter more or less speckled with dusky; maxilla dusky l)rown or 

 blackish, with paler tomia; mandible i)alc ))rownish; iris l>r()wn: legs 

 and feet light l>rown (in dried skins). 



Young. — Essentially like adults, l)ut brown of back, scapulars, riunp, 

 and upper tail-coverts without bars, superciliaiy and postocular stripes 

 indistinct, and under parts darUm-. with f(>athers more or less distinctlv 

 margined with dusky. 



Adult male. — Length (skins), 87-92 (90); wing, 45-50 (47.«)); tail, 

 28-32 (30.3); exposed eulmen. 11-12 (11.2); tarsus. 18-li).5 (1S.5); 

 middle toe, 12-13 (12.8)." 



"Ten specimens. 



