I'll BinDS OF ILLIXOIS. 



wings, more even tail, and larger toes and claws. It is also very 

 similar to Sciiirtts, differing chiefly in the longer wngs, larger claws, 

 and absence of spots beneath." (Hist. S. Am. li.) 



Common rnARACTEiis. Aliovo plain olIvo-Rrcon, boneutlipltlu yellow (except on throat 



iinU JiiRiiliim, In (J. agili> alone). 



1. 0. Kgilii. Adiill mnlf: Head, neck iinil Jiicuhim ii»h-t;ray. Ilelitor on the thront un<l 

 tin«eil with olive on the rrown; a Jlstluet white orbital rlnc. Atlult frmale: Throat 

 and jiiKulum UkIiI smoky Krny, upper head and nape olive, like the hack, and yellow 

 of lower partH paler and duller. Yuuna hi fliti anhiuin: Similar to the female, liut 

 throat and jumiluni still duller and more or Ichh lineed with dull yellowish. 



- 0. formosa. Ailull mnle: Crown Idaek. the feathern tipped with ash-Kray: lores und 

 Iriantiular patch nn auricnlars lihn-k; hroail Kupereiliary stripe. i4i)ot on hiwer eyelid, 

 and I'ntire lower partis rii'h yellow. Ailiill /mnilf: Slmihir to the male, liut rather 

 duller. I'oiiiifl; Like the adult female, but still duller, the black patcheB con<'enled 

 or replaced by dusky smoky olive. 



Geothlypis agilis (Wils.) 



CONNECTICUT WAKBLEH. 



FoptUar synonTm. Gray-hended Wiirl.l. r. 



iS>/i'io agitis Wii.s. Am. Orn. v. 181;;, 64. pi. Sn. fie. J.— .\VD. Orn. Bloc II, 1834, 2J7, pi. 138. 

 Trichas agilin NUTT. Man. id ed. i. 1840, 463. 



Suli:icoJa aoilin Jabd.— Ari). Synop. ISffl. 63; B. Am. ii. 1841. 71. pi. 99. 

 Opororni.i aoilis Baikd, B. N. .\ni. 1858. 246; ed. 1860. pi. 79. Hk. 2; Cat. N. Am. B. IS.W. 

 No. 174; Hevlew. 186,^, 218.— CouES. Key, 1872,106: Check List. 1873, No, 95; 2d ed. 1882. 

 No. 139: B. Col. Vul. 1878. ."XW.-B. B. Jt U. Hisi. X. Am. B. I. 1874. 290. pi. 15. lies. 1. 2.- 

 KiDow. Noni. N. Am. B. 1881. No. 118. 

 Triclia.i tepliroculif NuiT. Man. 2<l ed. i, 1840. 462. 



Had. Eastern United States and British Provinces, mierntine uorlhward in sprint; 

 cliielly thronch the Mississippi Valfey. and returniuK southward in autumn through the 

 AlliMitic' .states. Winter residence unknown, but probably in Gulf States, there beiiiK no 

 exlraliniitnl record. Breeds in Maniloba. and probably elsewhere in the interior of 

 British .Vmeriea. 



. "Sp. Char. ><iiri)ig male. Upperpartsnndsidesoftheboily uniform olivc-creen. very 

 slightly tiueed with ash on the crown. Sides of the head ash. linked with ilusky beneath 

 the eye. lEulire head sometimes ash.) Chin and throat crayish ash. eradually becimine 

 darker to the upper [lart of the breast, where it becomes tiuKcd with dark ash, Shli^s of 

 the neck, breast, and body, olive, like the hack: rest of underpartslieht yellow. A broad 

 continuous white ring round the eye. Wings and tail feathers cdivi' (csiiecially Ihe latter), 

 without any traci> of bars or spots. Bill brown above. Feet yellow. Length. 6 inches: 

 wing. 3.0U: tail. 2.25. Fi'mali: The olive green reaching to the bill, and covering sides 

 of head: lluoal and Jugulum pale ashy bulT. Yoimo not seen. Nestling unknown. 



"Autumnal specimens nearly uniform olive above; tlu' throat 

 tinged with lirowuish so as to ohsfuro tho iish. 



"A spoeimoii in the collection of the I'hiladelphiii .Vendemy, killed 

 by Mr. KriiUr, has tln' darker ash of the jugulum of a decided 

 sooty tinge. 



"A peculiarity in the history of this species is shown in the fact 

 that it is quite abundant in Illinois, Wisconsin, etc., in the spring, 



