13U BIRDB Of ILLINOIS. 



Helminthophila pcregrrina (Wils.) 



TENNESSEE WARBLEB. 



Syltria pn-eorina Wiu. Am. Orn. HI, 1811, 83. pi. 2S, flu. 2.— NcTT. Man. 1. 1832. 412.-AUD. 

 Orn. Bloe. II. 18:m. 307, pi. IM. 

 St/tvicola ( IVmiirora) fierpgrina 8w. i Uicn. Faun. Bor. Am. li, 1831. 2JI. pi. «2. 

 rcmiirora peregritia NuTT. Man. 2(1 od. I, Wu. 4C9. 

 Ifelinnia peregrina AuD. Hynop. IStO, (S; 15. Am. 11, 1841, %, pL 110. 

 HelmiHtliop/iaga peregriiia Cad.— Baird, B. N. Am. 1858. 358; Cat. N. Am. A. 1859. No. 1815: 



Revlow, 1865. 178.— CouES. Key, 18r2, !)5; Check List. 1873. No. 69; 2d od. 1882, No. 109; 



B. N. W. 1874,5;): B. Col. Val. 1878. 2:10. -B. B. & H Hist. N. Am. B. 1. 1874, 205, pi. 



11, riKS. 10, ll.-KiDow. Nom. N. Am. B. 1881. No. 87. 

 Helminthophila peregrina Rirow. Bull. Nutt. Orn. CI. vU, 1882.64. 



Has. Eastern North America, west to eastern base of Rocky Mountains (El Paso Co., 

 Colorado, Sept. 1, 1873: C. E. Alkon); breedincfrom northern border ot Uiilti-d Btatos to 

 the Arctic rettlons; winters in Cuba and Middle America and south to Colombia. 



"Sp. Cdab. Top and sides of the head and neck ash-sruy: rest of upper parts ollve- 

 Kreen. brigihtest on the rump. Beneath dull white, faintly tinned in places, especially on 

 the sides, with yellowisu-olive. Kyelids and a stripe over the eye whitl.'<h: a dusky line 

 from the eye to the bill. Outer tail-feather with a white spot along the Inner edee near 

 the tip. Female with the ash of the head less conspicuous; the under parts more tlneed 

 with olive-yellow. Length, 4.50; wine. 2.75: tail, 1.85. 



"Autumnal specimens and youuB birds are sometimes so stronKly tlnRed with Kreen- 

 Ish yellow as to be scarcely disllncuishable from I], celala. The wlnu is, however, 

 always loncer. and the obscure whithlsh patch on the Inner edge of the exterior lall- 

 fealhcr. near its tip, Is almost always appreciable. In celata this odue Is very narrowly 

 and uniformly mareined with whitish. 



"A young bird of the year, from Fort Simpson (27.'22S), has two distinct groenish white 

 bands on the wings, and the forehead and cheeks greenish yellow. A corresponding age 

 of //. celala has the wing-bands more reddish brown, the wlnss shorter, and no white 

 patch on the outer tail-feather." (Hist. N. Am. B.) 



Autumnal specimens usually have the primaries narrowly but distinctly tipped with 

 white, and occasionally show traces of while tips to the greater wIng-coverts. 



Like the Orange-crowned Warbler, the Tennessee Warbler is a 

 bird of extreme northern distribution during the breeding season ; 

 but, while the former is chiully western during its migrations the 

 latter is exclusively eastern, the base of the Rocky Mountains being 

 the western limit of its range. It is very abundant in Illinois dur- 

 ing its migrations, hoth in spring and fall ; indeed, it seems to be 

 far more numerous west of the Alleghanics than eastward of that 

 range, in which respect it is like the Philadelphia Vireo and several 

 other migratory birds, which can scarcely be considered as more 

 than stragglers in the Atlantic States. Like the Orange-crowned 



