PASSERES SYLVICOLIDAE GEOTITLYPIS MACGILLIVEAYI. 205 



BREW., & EIDG., N. A. Birds, i, 1874, 297, pi. xv, f. 4. YARROW & HENSHAW, 

 Eep. Orn. Specs., 1872, Wheeler's Exped., 1874, 10. HENSHAW, Au. Lye. 

 Nat. Hist. N. Y., xi, 1874, 4. Id., An. List Birds Utab, 1872, Wheeler's 

 Exped., 1874, 42. Id, Eep. Orn. Specs., 1873, Wheeler's Exped., 1874, 59, 

 103. ALLEN, Proc. Bost. Soc. Nat. Hist., June, 1874, 15, 22. COUES, Birds 

 Northwest, 1874, 74. 



Trichus inaryhnulicus, WOODIL, Sitgreave's Exp. Zuiii & Col. Eiv., 1854, 71. 



Trichus delafieldii, HEERM., P. E. E. Eep., x, pt. iv, 1859, 40. 



This species has been found by our parties in various parts of Utah 

 and Colorado, although it appears to be not so common as at the E;ist. 

 The thickets by the water courses and the damp meadowy grounds of the 

 lowlands are its places of resort. In Arizona, it appears to be rare ; and I 

 have met with it but twice, at Camp Apache, and again at Camp Grant. It 

 is a summer resident. 



GEOTHLYPIS MACGILLIVEAYI, Baird. 

 JTIacGillivray's Warbler. 



SyMa inacyiUirrayi, AUD., Orn. Biog., v, 1839, 75, pi. cccxcix. 



GeotMypis macyillivmyi, BD., U. S. & Mex. Bound. Surv., ii, pt-. ii, 1859, Birds, 

 !()._ Id., Birds N. A., 1858, 244, pi. 99, f. 4. XANTUS, Proc. Acad. 

 Nat. Sci. Pliila., 1859, 191 (Fort Tejon, Gal.). HENRY, Proc. Acad. 

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

 Eep., xii, pt. ii, I860, 177. BD., Eev. Am. Birds, i, 1865, 227. 

 COUES, Proc. Acad. Nat. Sci. Phila,, 18G6, 70 (Fort Whipple, Ariz.). 

 COOPER, Am. Nat., iii, 1869, 32. Id., Proc. Cal. Acad., 1870, 75 (Colorado 

 Eiver). Id., Birds Cal., i, 1870, 96. COUES, Key N. A. Birds, 1872, 107. 

 ALLEN, Bui. Mus. Comp. Zool., 1872, 175 (Eastern Kansas ; Colorado). 

 AIKEN, Proc. Bost. Soc. Nat. Hist., 1872, 197. EIDG.. Am. Jonr., Dec., 

 1872. 459. YARROW & HENSHAW, Eep. Orn. Specs., 1872, Wheel- 

 er's Exped., 1874, 10. HENSHAW, An. Lye. Nat. Hist. N. Y., xi, 1874, 4. Id., 

 An. List Birds Utah, 1872, Wheeler's Exped., 1874, .42. Id., Eep. Oru. 

 Specs., 1873, Wheeler's Exped., 1874, 59, 75, 103. BD., BREW., & EIDG., N. 

 A. Birds, i, 1874, 303, pi. xv, f. 4, 5. ALLEN, Proc. Bost, Soc. Nat. Hist, 

 June, 1874, 22. COUES, Birds Northwest, 1874, 75. 



Trichas tolmiasi, HEERM., P. E. E. Eep., x, pt. iv, 1859, 40. 



The MacGillivray's Warbler is one of the most characteristic of the 

 family throughout the Middle Region, and has been detected by the 



