590 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



dusky streaks; sides of head and neck plain cinereous or plumbeous, 

 relieved b}- a white orbital ring; under parts white medially passing 

 into light olive-gray laterally, the flanks sometimes touched with 

 chestnut; wings, tail, and upper tail-coverts as in adults. 



Yoicngr in first plumage. — Above plain light olive, the wings and 

 tail essentially as in adults; an indistinct whitish orbital ring; sides of 

 head and neck, chin, throat, chest, and sides of breast plain pale buffy 

 grayish or drab; rest of under parts white, the sides and flanks tinged 

 with pale grayish brown. 



Eastern United States and more southern British Provinces; north 

 to Nova Scotia, northern Ontario, and Manitoba; west to edge of the 

 Great Plains, casually to eastern Wyoming (Cheyenne); breeding south- 

 ward to Connecticut, northern New Jersey, Pennsylvania (Butler, 

 Armstrong, Indiana, Clearfield, Elk, and Luzerne counties), northern 

 Ohio, central Illinois, Missouri (St. Louis County), and eastern Nebraska 

 (near Omaha), and along Allegheny Mountains to western North Caro- 

 lina (2,000 to 4,000 feet), northwestern South Carolina (Pickens County, 

 etc.), and eastern Tennessee (Roan Mountain, 3,500 to 4,000 feet). In 

 winter south through eastern Mexico and Central America to Isthmus 

 of Panama (Lion Hill Station, Panama Railroad) and to Bahamas 

 (island of New Providence). Accidental in Greenland. 



[MotacUla] pensylvanica Linn.eus, Syst. Nat., ed. 12, i, 1766, 333 (based on The 

 Red-throated FlycatcJier, Muscicapa gutture rubro, Edwards, Gleanings Nat. 

 Hist., ii, 193, pi. 301). 



[^Si/lvia] pensylvanica Latham, Index Orn., ii, 1790, 540. 



Dendroica pensylvaniba Parker, Am. Nat., v, 1871, 168. — Stark, Am. Nat., viii, 

 1874, 756 (West Virginia, breeding). — American Ornithologists' Union, 

 Check List, 1886, no. 659.— Ralph, Trans. Oneida Hist. Soc, iii, 1886, 139 

 (Oneida Co., New York, breeding). — Brewster, Auk, iii, 1886, 174 (moun- 

 tains w. North Carolina, breeding at 2,000 to 4,000 ft.).- — Cooke, Bird Migr. 

 Miss. Val., 1888, 249 (breeding south to Iowa and central Illinois; dates of 

 migration, etc.). — Bond, Auk, vi, 1889, 34 (Cheyenne, Wyoming, 1 spec. 

 May 23).— LooMis, Auk, vii, 1890, 127 (Pickens Co., South Carolina, breed- 

 ing); viii, 1891, 331 (Cpesars Head, South Carolina, breeding). — Cherrie, 

 Auk, vii, 1890, 336 (San Jose, Costa Rica, Sept. 28 to Apr. 24.)— Thompson, 

 Proc. U. S. Nat. Mus., xiii, 1890, 619 (Manitoba, breeding).— Hagerup, Auk, 

 viii, 1891, 320 (Greenland).— Todd, Auk, viii, 1891, 398 (Butler and Arm- 

 strong counties, Pennsylvania, breeding); x, 1893, 41, 45 (Indiana and Clear- 

 field counties, Pennsylvania, breeding). — Gault, Auk, ix, 1892, 396 (near 

 St. Louis, Missouri, breeding).— Cory, Cat. W. I. Birds, 1892, 118 (New 

 Providence, Bahamas). — White, Auk, x, 1893, 228 (Mackinac I., Michigan, 

 breeding). — Nehrling, Our Native Birds, etc., i, 1893, 213, pi. 12, fig. 5. — 

 Richmond, Proc. U. S. Nat. Mus., xvi, 1893, 484 (Rio Escondido, Nicaragua, 

 Sept. 29 to Feb. 16).— Stone, Auk, xi, 1894, 182 (Pocono Mts., Pennsyl- 

 vania, breeding). — McIlwraith, Birds Ontario, 1894, 366 (common summer 

 resid.).— Rhoads, Proc. Ac. Nat. Sci. Phila., 1895, 495 (Roan Mt., e. Ten- 

 nessee, breeding at 3,500 to 4,000 ft.). — Oberholser, Bull. Ohio Agric. 

 Ex. Sta., tech. ser., i, 1896, 326 (Wayne Co., n. e. Ohio, July 9 to 16.— 

 Young, Auk, xiii, 1896, 284 (Delano, Harveys Lake, etc., Pennsylvania, 



