188 BIRDS OF ILLINOIS. 



as I have heard it, bears uo resemblance to that of any other 

 Vireo. It is a prolonged and very peculiar ditty, repeated at fre- 

 quent intervale and always identical. It begins with a lively and 

 pleasant warble, of a gradually ascending scale, which at a certain 

 pitch suddenly breaks down into a falsetto note. The song then 

 rises again in a single high note, and ceases. 



"Mr. Nuttall found a nest of this species suspended from the 

 forked twig of a wild crab-tree, about ten feet from the ground. 

 The chief materials were dead and withered grasses, with some cob- 

 webs agglutinated together, externally partially covered with a few 

 shreds of hypn\ini, assimilating it to the l)ranch on which it hung, 

 intermingled with a few white paper-like capsules of the spiders' 

 nests, and lined with a few blades of gi-ass and slender root-libres." 

 (Brewer.) 



ScBGENu's Vireo Vieillot. 



Viri-o ViEii-i.. Ois. Am. Sipt. i. 1807, 83. Typo, Miiscicapa noveborarensif CfMEL. 



"tfUBOEN. Chak. Wings short and roundcii. a little longer tlinn the tail, eiiiml to it. 

 or shorter. First primary dislinet and large, from two llfths to half or more the length of 

 the second, shorter or not longer than the eighth." l/Iist. X. Am. D ) 



The two species of this subgenus which are known to occur in 

 Illinois may be distinguished by the follow'ing characters : 



1. V. noveboraoensis. Two distinet white hands on wing. Lores diislcy. bordered 

 above liy a yellow streak; a yellow orbital ring. Above olive-green, the nape 

 usually ashy; lower parts white, the sides greenish yellow. Iris while, in adults. 



2. V. bellii. Only one white band on wing, and this indistinct. Lores and orbital 

 ring white, the former with a dusky streak. Above grayish olive, more greenish 

 posteriorly ; beneath buffy white, the sides and crlssum tinged with sulphur-yellow. 



Vireo noveboracensis (Gmel.) 



WHITE EYED VIREO, 

 Popular synonTins. White-eyed Greenlet; Little Green Hanging-bird; Chlekty-beaver. 



Miiacicapa iiurchofacpnsis Omel. S. N. 1, 1788. 947. 



Vireo itoffhoraceiiain Bp. 1824.— Aud. Orn. Blog. 1. 1831, 328. pi. 63; Synop. 1839. 101; B. 

 Am. iv, 1842, 141!. pi. 240.-XUTT. Man. 1. 1.S32. .306.— Baird, B. N. Am. 1858 328; Cat. 

 N. Am. B. 18i». No. 248; Review. ISOO, 3i4.-CouES. Key, 1872. 122: Cheek List. 1873. 

 No. 129; 2d ed. 1882. Xo. 181; B. X. W. 1874. 100; B. Col. Val. 1878. 520.-B. B. & It. Hist. 

 N. Am. B. 1. 1874. 385. pi. 17. fig. 4.-RiDOW. Xom. X. Am. B. 1881. Xo. 14.% 

 Vireo cantalrix WiLS. Am. Orn. ii, 1810, 266, pi. 18. Rg. 6. 

 Hab. Eastern United States, west to edge of Great Plains; winters In Gulf States, 

 Cuba. Bermudas (resident), and eastern Mcxieo, south to Guatemala. 



