MOURNING WARBLER. 75 



Lieutenant Warren's Expedition. — 4674-5, "Nebraska;" 8834-37, Loup Pork. . ' '- 



Later Expeditions. — 60426, La Bontc Creek ; 62343-4, Utah and Jloiitana. "' '/ '■' 



Excellent analytical accounts of the species ol' this genus have been given by Baird, ■." ■ 

 Rev. 219-2:i>-^, and by Salvin, Ibis, 1872, 147-152; wUilo later, Mr. Ridgway, as .-ibove ;. 

 cited, has furnished an admirable synthesis, showing the rciations of the forms ■which -' '-' 

 other writers had differentiated, and thus managing to reduce the eleven or twelve ^^Ot!_ 

 current species to five. The connection between climate and color is proven to be a^ iJ 

 relation of cause and effect. ' '■ 



GEOTHLYPIS PHILADELPHIA, (Wils.) Bd. 



Mourning Warbler. 



a. Philadelphia. 



Sijlvia iMlachlpliia, Wils., Am. Orn. ii, 1810, 101, pi. xiv, f. 6.— Bp., Sva. 1828, 85.— 

 NiJTT., Man. i, lel3-2, 404.— AuD., Orn. Biog. v, 1839, 78. 



Triclms pliiladelpUa, Jard., ed. Wils. 1832.— Rici-i., List, 1837.— Bp., List, 1838.— Bp., 

 Cousp. i, 1850, 310.— Remh., Vid. Med. 1853,73; Ibis, 1861, 6 (Greenland).— 

 Tmppk, Pr. Ess. Inst, vi, 1871 (Minnesota, breeding abundantly). — Hoy, Smiths. 

 Eep. 1804, 438 (Western Missouri, breeding). 



Gcothliipiii phUaddphia, Bd., B. N. A. 1858, 243, pi. 79, f. 3 ; Rev. 18G5, 226.— Lawk., Ann. 

 Lye. N. Y. 1861, 322 (Panama).— SCL., Cat. 1862,27 (Orizaba).— Allen, Pr. Ess. 

 lu.st. iv, 1834, 59 (Massachusetts, rare). — Haml., Rep. Sec'y Maine Board Agxic. 

 1865, p. — (Waterville, Me., breeding).— McIlwr., Pr. Ess. Inst, v, 1866, 85 

 (H,-irailton, C. W., very rare).— Lawk., Ann. Lye. N. Y. viii, 1806, 283 (New 

 York) ; ix, 1838, 94 (Costa Rica). — CouES, Pr. Ess. Inst, v, 1868, 269 (rare suui- 

 luer resident in New England). — CouES, Pr. Bost. Soc. xii, 1888, 110 (South 

 Carolina, rare, migratory).— Turnb., B. E. Pa. 1839, 16 (rare, particularly in 

 autumn). — Mayn., Guide, 1870, 99 (Massachusetts, rare). — Mays., Pr. Bost. Soc. 

 xiv, 1871 (breeding commonly at Umbagog). — Allkn, Bull. M. C. Z. iii, 1872, 

 126 (Topeka, Kaus., in May). — Snow, B. Kans. 5.— Salv., Ibis, Apr. 1872. — 

 RiDGW., Am. Journ. Sei. 18/2, 459. — Coues, Kej', 1872, 107. 



b. macglUivrayi. 



Si/h-ia macgillirrayi. AuD., Orn. Biftg. v, 1839, 75, pi. 399, figs. 4, 5. 



'J liclias macf/illirrayi, AVD., Syn. 1839, 64; B. Am. ii, 1841, 74. pi. 100. — Bp., Consp. i, 

 1850, 310. 



Syhicola macqillivrayi, Maxim., J. f. 0. vi, 1858, 118. 



Geothhjpis viaeqiUirraiji, Bd., B. N. A. 1858, 244, pi. 99, f. 4; Rev. 18S5, 227.— Sex., P. Z. 

 S. 1859, 363, 373 (Xalapa, Oaxaca) ; Cat. 1862, 27 (Guatemala).— Cab., J. f. O. 

 1861, 84 (Costa Rica).— L.uvR., Ann. Lye. ix, 1863, 94 (Costa. Rica).- Coop. & 

 Si-CK., N. H. Wash. Ter. 1860, 177.— Coues, Pr. Pliila. Acad. 1866, 70 (Arizona).- 

 Coop., Am. Nat. iii, 1869. 32 (Rocky Mountains) ; Pr. Cal. Acad. 1S7II, 75 (Col- 

 or.ado River) ; B. Cal. i, 1870, 96.— Salv., Ibis, 1872, 148.— Aiken, Pr. Bost. Soc. 

 1872, 197 (Black Hills).- Cuui:s, Key, 1872, 107. 



GeotMypis Philadelphia var. maerjiUirrayi, Allen, Bull. M. C. Z. iii, July, 1872, 175 

 (mountains of Colorado, below 9,000 feetl. — Ridgw., Am. Journ. DeL-. 1872. 459. 



Sylvia tolmiosi, Towns., Journ. Phila. Acad, viii, 1839 (1640), 139, 159; Narr. 1839, 343. 



Trichas tolmioei, Nutt., Man. i, 2d ed. 1840, 460. 



Triehas vegeta, Bp., Consp. i, 1850, 310 (based on 5'i/h'(rt W(?c(a, LiciiT., Mus. Berol; cf. 

 C.U3., J. f. O. 1861, 84). 



Sat. — The typical form in the Eastern Province of North America, north regul.arly 

 to the British provinces, casually to Gieeulaud. South to Costa Rica, Panama and Bo- 

 gota. West to Kansas. No record of wintering iu the United States, the West Indies 

 or Mexico. Breeds in New England. The var. macijillivraiii from the Middle and West- 

 ern Provinces, north to British Columbia; east to Colorado aud Laramie. Winters iu 

 Mexico and Central America. Breeds in all its United States range. 



Later EqiedUions. — 60700, Box Elder Creek (var. maegillivrayi). 



Although iu the Key I kept Macgillivray's Warbler specifically separate from the 

 Mourning Warbler, I am now prepared to .agree with Mr. Allen iu rankiug it as a geo- 

 graphical race of the latter. Mr. Ridgway has also adopted the same viesv, njion his 

 iudependent investigations. He shows some additional characters of general applica- 

 bility, besides the presence of white eyelids in the western bird ; this form being longer- 

 tailed (2.25 to 2..50 instead of 2.00 to 2.15), with darker lores, the black cuntrasting with 

 the ash and white of contiguous parts, and the black centres of the pectoral feathers 

 ne\er forming a continuous blotch, as is the case with higher-plumaged specimens of 

 Philadelphia. 



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