2 NUUTII AMEKICAN ClUDS. 



A» ("rowii clill'riciii riiiiii lliu silk's of tliu lieiul, ^i jiliiiii li;_'lit su]»'rriliiiry 

 slii|ii', Yninij; will] iidwii mill breast >^ti't'iiki'il. 



((. C'luwii nilniis iiiiil |il;iiii in mcIiiIi : in yoiinj,', jriiiyi-li iiinl willi .--trraiis. 



/. Sli'i'ik hiliiiiil ri/o,!!!!!/ /iiii/r 1,11 xiilc iif hrvitxt, nijoiis. Hijij jm/r liliir, 

 III- liliiisli-irliilr, lihilrliiil iril/i jiulr hruifii^ ur K/iriiikleil ii'ith rcililisli. 

 1. S. mouticola. Crown liri<.'iil inlbiis, iiniliviilt'ii inciliiilly ; a 

 ilu>ky sput on iiiiv; \vinj;-liiinils sliar|ily (Icliin'il, pine while. A 

 liliii'i\ split on liri'ast ; jiii,'iilimi tinguil willi nsliy. IJill lilark 

 iiliovi'. yellow Ih'IoW. LiMiy:lli, O.'i') ; wing, ;j.UO. Huh. Wiiole ol' 

 Noilli Anieiii-a ; noi'ili of llie I'niteil States only, in sunniier. 



'1. S. pusilla. Crown ilnli inlous, iiulisliiieily liiviileil iially ; 



lores entirely wliilish ; win;;-lianils not sharply ileliiieil. pale hiiuvn. 

 No hlack spot on breast; juguluni tin>,'ud w-'b bnll". liill eniiiely 

 light browiiish-rcil. 



Wintr, 2.70; tail. '_'.8(l; bill, from forehead, .37. Ilah. East- 

 ern I'roviiiie I'niteil .Slates ..... var. j)ii.ii/lii. 



"Similar, but colors clearer, anil bill more rolinst." I/ub. 

 Peten, (liuiteinala var. ji in <■ t <> r nm } 



II. Streak hrhiiiiJ the cije blaekish. A'" rii/mi.i tiiir/e on siile nf hreimt. 

 Ki/i/ (Jeej) blue, trith binrk diit.i aii'l .tfrenks round hin/er end. 



;i. S. Bocialis. Crown bri;.'ht rufous, not distinctly divided, gen- 

 erally plain. Koreheatl black, divided niedi.illy with white. Streak 

 of lilaek on lore and behind eye. Hmnp pure bluish-ash. Bill 

 blackish, lower mandible paler. 



.\urieulars deep ash, in strong contrast with pure white of 

 the supereiliary stripe and throat; breast without ashy tinge. 

 Dorsal .streaks broad. Wing, 2.80; tail, 2.;i(). /lob. Eastern 



Province of United Slates var. sochAis. 



Auriculars lighter ash, less strongly contrasted with the 

 white above and Ijelow ; breast strongly tinged with ash. 

 Dorsal streaks narrow. Wing, :5.00; tail, 2.!l0. Huh. Western 

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



var. (irizunm. 



h. Crown light grayi.sh-ljiown, with distinct black streaks; young 

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

 (precisi'ly as in sorialis). 

 4. S. pallida. 



Crown divided medially by a distinct pale stripe; whitish 

 supereiliary stripe, and blacki.sh post-ocular .streak .'^harply 

 deliued. A dusky suli-maxillary streak. Nape ashy in con- 

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

 Plains of United States, from the Sa,skatcliewan southward. 



var. jxt llida . 



Crown without a distinct median stripe. Jfarkings on side 



of head not sharply defined. Xo dusky sub-maxillary stripe, 



and nap<! .scarcely dill'erent from crown and back. Wing, 2.50; 



tail, 2.00. Hull. Middle and wx'stern Provinces . var. breweri. 



B> Crown not dilVereut from the sides of head; no light superciliary stripe. 



1 S/ihflla piiiclornm, .Sai.vin, I'r. Z. S. 1863, p. 189. ("Siiiiilis S. jntstl/w, ex Amer. Sept. 

 et Muxico, sod coloribus clarioiibus et rostro robii-stiort' dilfert.") 



