PASSEEES HIEUNDINIDAE TACHYCINETA THALASSINA. 217 



TACHYC1NETA BICOLOE (Vicill.). 

 White-bellied *w allow. 



Uirundo b'tculur, VJEILL., Ois. Am. Sept., i, 1807, 61, pi. xxxi. WOODH., Sitgreave's 

 Exp. Zufli & Col. Eiv., 1854, Go. ED., U. S. & Mex. Bound. Snrv., 

 ii, pt, ii, 1851, Birds, 11. NEWB., P. E. E. Ecp., vi, 1857, 78. BD., Birds 

 N. A., 1858, 310. XANTUS, Proc. Acad. Nat, Sci. Pbila., 1859, 191 (Fort 

 Tejon, Cal.). HEEKM., P. E. E. Eep., x, pt. iv, 1859, 30. HENRY, Proc. 

 Acad. Nat, Sci. Pbila,, 1859, 100 (New Mexico). COOP. & SUCKL., P. E. E. 

 Eep., xii, pt. ii, 1860, 185. BD., Eev. Am. Birds, i, 1865, 297. COOPER, 

 Birds Cal., i, 1870, 106. ALLEN, Bui. Mus. Cornp. Zool., 1872, 176. SNOW, 

 Birds Kan., 1872, 8. 



Tachycineta bicolor, COTJES, Key N. A. Birds, 1872, 113. YARROW & HENSHAW, Eep. 

 Orn. Specs., 1872, Wheeler's Exped., 1874, 11. HENSHAW, An. Lye. Nat. 

 Hist. N.Y., xi, 1874, 4. Id., An. List Birds Utah, 1872, Wbeeler's Exped., 

 1874, 42. HENSUAW, Eep. Oru. Specs., 1873, Wheeler's Exped., 1874, 76. 

 ALLEN, Proc. Bost. Soc. Nat, Hist., June, 1874, 29. COTJES, Birds North- 

 west, 1874, 86. 



Found at Fail-field, Utah, early in August, and at Provo in same month. 

 Rather common. 



In Southern Colorado, the species was not uncommon, though perhaps 

 the rarest of the swallows. Here, instead of being found near the habi- 

 tations of man, it appeared to seek the solitude of the wild districts, and, in 

 company with the succeeding species, to find a home in the hollows of the 

 trees and deserted "Woodpecker's holes. Its presence was not detected at a 

 higher elevation than 8,000 feet. Captain Bendire informs me that this 

 species occurs about Tucson as a summer visitor, and breeds. 



TACHYCINETA THALASSINA (Sw.). 

 Violet-green Swallow. 



nirundo thalassina, SWAINS., Phil. Mag., i, 1827, 365 (Mexico;. WOODH., Sitgreave's 

 Exp. Zufli & Col. Eiv., 1854, 64. BD., U. S. & Mex. Bound. Snrv., ii, pt, ii, 

 1859, Birds, 11. NEWS., P. E. E. Eep., vi, 1857, 78. BD., Ives' Col. Exped., 

 1857-58, pt. iv, 5. Id., Birds N. A., 1858, 311. HEERM., P. E, E. Eep., 

 x, pt. ii, 1859, 36. BD., Proc. Acad. Nat. Sci. Phila., 1859, 303 (Cape Saint 



