WOOD WARBLERS 



425 



and winter : like summer male, but feathers of crown and hind neck tipped 



with brown and light edges of feathers on 



throat and chest broader, sometimes almost 



concealing- black centers. Adult female in 



fall and winter : like summer female, but 



plumage softer, and sides of throat and chest 



more grayish. Young female in Jirst autumn: 



like fall adult female, but crown and hind 



neck like back instead of gray, throat and 



chest yellowish instead of grayish ; marks on 



eyelids yellowish, and streak over lores pale 



yellow. Male: len<:th (skins) 4.07-5.44, 



wing 2.34-i'.5(;, tail 2.0S-2.4S, bill .48-.46. 



i^ewio/f: length (skins) 4.63-5.04, wing 2.1.")- . 



2.86, tail l.'.»l-2.28. bill .42-.48. ^'^- ^'^''- M«^&»»'-^^>' Warbler. 



Distribution. — Breeds in British Columbia and western United States, 

 from the eastern foothills of the Bocky Mountains to the Pacific coast 

 ranges ; winters in Lower California and Mexico, and from Central Amer- 

 ica to'Colombia. 



Nest. — Near ground in clumps of weeds or bushes, often in open places 

 in mountains, made of dried grasses lined with finer grass, and sometimes 

 horsehair. J^ggs : 8. white or buff"y. speckled on larger end with dark 

 brown and lilac gTay, with a few pen lines and rusty stains. 



The Macgillivray warbler is one of the commonest of western war- 

 blers, frequentiug chaparral and underbrush especially near water, 

 from the lower levels to the higli mountains, and the appearance of 

 a little gray head peering out shyly from the bushes becomes a pleas- 

 antly familiar motmtain sight. 



681a. Geothlypis trichas occidentalis Brewst. Western 

 Ykllow-throat.i 

 Adult male. — Forehead and sides of head black, bordered above with 

 white, sometimes tinged with yellow ; rest of upper parts plain olive 

 green ; under parts deep yellow. In win- 

 ter, wa-shed with brown. Adult ftmah : 

 without black, a.shy. or white ; ujiper parts 

 olive brown, often tinged with reddi.^h 

 brown on crown, greenish on tail ; under 

 parts ])ale yellowish or yelhiwish white. 

 Young male in first winter: like adult, but 

 black mask less distinct. Af(de : length 

 (skins) 4.58-5.00. wing 2.i7-2.;;r,. tail 2.01- 

 2.22. bill .4.")-. 47. Female: length (skins) 

 4.8.8-4. 7(;. wing 2.05-2.15, tail l.'.t:;-i>.0'.i. 

 bill .41 -.48. KiK'. -K«J. 



' (;fothli/pi.i tn'cha.1 srirpirol'i (iriiMwU. Tui.k Yki.i.ow-thuoat. 



Like nrridentali.f, hut briRliter coloriMl aiul liir^jfr. witli l^>ll^J»>r tail. 



IH.slribution. — KfHiilent in fresh water tiilo Ih-Ub along coast of soutbero California. 

 {The Condor, iii. f^"..) 



<;rot/ili/j)i.<t lrir/iii.i sintiosd Qr'mnAl. Salt Mak.sh Yki.low-throat. 



Like nccidnitali.i, but smaller, and back and sides darker. 



Dintribulion. — Resident about salt marshes of San Francisco lUy and vicinity. ( The 

 Condor y iii. UG.) 



