2 



xiiUTii AMi;i;irAN diwds. 



I 



i 



A. ('ri>v.!i <liirritiit liuin tlio sitlfs oi' the hcail. a jilaiii liL'ht sii|u'niliary 

 btriiK', Vdiiii;: witli « rown ami l)rt'ast hti«'akt'<l 



a. Ciowii nil'itus and plain in ailult : in yomijr, |.'rayi>li and witli streaks. 



/. Sfi'iiik behind etje^auil tliiije int siih- nf hreitst^ nitons, /y/ij j,olr hfxe^ 

 or hhu's/i-ii'/iife, l»/uff/ieil nufli jiak' hron'n, or sjirink'led wHIi leihUnli. 



1. S. mouticola. Crown liriirlit nituus, undiviik'd medially: a 

 du.-ky sj»ut t>n liMe; wiii^^-ltaiids stliai'itly delined. puie white. A 

 blaek s|)(it on hivast ; jiii/nluni tiii'/ed with ashy. Hill hlaek 

 uhove, yellow Ih'Iow. Lentrth. (».*J."i ; winL', o.'M'. ll<ih. Whole of 

 North Anieriea ; north (•!' the I'nited States only, in summer. 



2. 8. pusilla. Crown dull rulous, indistinctly divided medially ; 

 lores entirely whitish ; wiiij^-hands not sharjdy delined. pale hiown. 

 No Itlaek spot on breiust; jugulum tinired with bull'. Uill entirely 

 light l>rownish-red. 



Wing, 2.70; tail. 2.80; bill, from forehead, .37. Ilah. East- 

 ern Provinre Tnited Slates var. pnsilln. 



''Similar, l)ut colors clearer, and bill more robust." Hah. 

 Peten, <ruatemala ...... var. j> i )i c t o rv m .^ 



II. Strenlc behind the eye blackish. X<> rvfoiis tinge on side of bredst. 

 Eiftj deep hlxe^ \rith bhirJc dots and streaks ronud hirf/er end. 



3. S. socialis. Crown briirht rufous, not distinctlv divided, con- 

 erally plain. Forehead blaek. divided medially with white. Streak 

 of black on lore and behind eye. I\um[) pure l»luish-ash. Ijill 

 blackish, lower mandible paler. 



Auriculars deep ash, in strong contrast with pure white of 

 the superciliary stripe and throat; breast without ashy tinge. 

 Dorsal streaks broad. Wing, 2.80; tail. 2.oO. Ilob. Eastern 

 Province of United States ..... var. social is. 



Auriculars lighter ash, less strongly contrasted with the 



white above and below; breast strongly tinged with ash. 



Dorsal streaks narrow. Wing, 3.00; tail, 2.K0. Ilab. Western 



Province of United States, and table-lands of Mexico. 



var. a rizonce. 



b. Crown light grayish-brown, with distinct black streaks; young 

 differing in streaked. Egg deep blue, with black streaks and dots 

 (precisely as in socialis). 



4. S. pallida. 



Crown divided medially by a distinct pale stripe ; whitish 

 superciliary stripe, and blackish p<ist-ocular streak sharjdy 

 defined. A dusky snb-maxillary streak. Nape ashy in con- 

 trast with the crown and back. Wing, 2.50; tail, 2.40. Ilab. 

 Plains of United States, from the Saskatchewan southward. 



var. ji(( II i d a . 



Crown without a distinct median stripe. ^Farkings on side 

 of head not sharply defined. No dusky sub-maxillary stripe, 

 and nape scarcely different from crown and back. Wing, 2.50; 

 tail, 2.<)0. Il'ib. Midide and western Provinces . var. b r e w e r i . 



B. Crown not (litVerent from the sides of head; no light superciliary stripe. 



1 Spiz^Ua pinctornm, Sai.vin, Pr. Z. S. 1S63, \\ 189. ("Similis .S". pimVc^., ex Amer. Sept. 

 et Mexico, .sed coloribus clurioribiis et rostro robustiore ditfert.") 



