BIRDS — SYLVICOLIPAE — DENDROICA VIBENS. 



2G7 



Comparative measurements of species. 



DENDROICA VIRENS, B a i r d . 



Black-throated Green Warbler. 



Molacilla virtns, Gmelin, Syst. Nat. I, 1788, 985. 



Sylvia tirens, Latham, Ind. Orn. II, 1790, 537. — Vieillot, Ois. Am. Sept. II, 1807, 33 ; pi. xciii. — Wilsow, Am. 



Orn. II, 1810, 127 ; pi. xxvii, f. 3.— Bonap. Ob.s. Wils. 1826, No. 146.— Nlttall, Man. I, 1832, 



376 — AcD. Orn. Bio». IV, 1838, 70 ; pi. 399. 

 Sylvieola firtns, " Swainso.v," Jard. ed. Wils. 1832.— Bonap. List, 1838.— Aon. Syn. 1839, 55.— In. Birds Amcr. 



II, 1841, 42 ; pi. 84 — Reinhardt, Vid. Med. for 1853, 1854, 72, 81. 

 Wiimanphus vireta, Cabanis, Mus. Hein. 1851, 19. — Ib. Journ. Orn. Ill, 1855, 474. 



Sp. Ch. — Male — Upper parts, exclusive of wing and tail, clear yellow olive green, the feathers of the back with hidden 

 streaks of black. Forehead and sides of head and neck, including a superciliary stripe, briglit yellow. A dusky olive line 

 from the bill through the eye, and another bijlow it. Chin, throat, and forj part of breast, extending some distance along on 



