ORDER PASSERES. 325 
Wilsonia pusilla (WiLson). 
Rance.— North America, breeding almost wholly north of the 
United States, except in the Rocky Mountain region and near the 
Pacific coast; winters in Mexico and Central America. 
a. Wilsonia pusilla pusilla (Witson). Wilson’s Warbler. [685.] 
Muscicapa pusilla Wiuson, Amer. Orn., III, 1811, 103, pl. 26, fig. 4. 
(Southern States, and lower New Jersey and Delaware.) 
Ranar.— Eastern North America. Breeds in Boreal zones from tree limit 
in northwestern and central Mackenzie, central Keewatin, central Ungava, 
and Newfoundland south to southern Saskatchewan, northern Minnesota, 
central Ontario, New Hampshire, Maine, and Nova Scotia; winters in eastern 
Central America from Guatemala to Costa Rica and occasionally north to 
Michoacan; migrates mainly along the Alleghenies; practically unknown in 
the Austroriparian Zone from Virginia to Louisiana. 
b. Wilsonia pusilla pileol4ta (PaLtLas). Pileolated Warbler. [685a.] 
Motacilla pileolata Patuas, Zoogr. Rosso-Asiatica, I, 1826 (1811?), 497. 
(Kadiak, Alaska.) 
Rance.— Western North America. Breeds in Boreal zones from northern 
Alaska south through eastern Oregon and eastern California to mountains of 
New Mexico and western Texas, and on the Pacific coast south and west to 
Queen Charlotte Islands; winters from Durango and Nuevo Leon to Panama; 
casual in Minnesota and Missouri. 
c. Wilsonia pusilla chryséola Rinaway. Golden Pileolated Warbler. [6850.] 
Wilsonia pusilla chryseola Ripaway, Bull. U. 8S. Nat. Mus., No. 50, Pt. 2, 
1902, 714. (Red Bluff, California.) 
Rance.— Pacific coast. Breeds on the coastal slope from southern British 
Columbia to southern California; winters in Chihuahua, Sonora, and Lower 
California; casual in migration in eastern Oregon and Arizona. 
Wilsonia canadénsis (LInNmus). Canada Warbler. [686.] 
Muscicapa canadensis LinNxus, Syst. Nat., ed. 12, I, 1766, 327. (Can- 
ada.) 
RanGe.— Eastern North America. Breeds in the Canadian Zone 
and casually in the Transition from central Alberta, southern Keewa- 
tin, northern Ontario, northern Quebec, and Newfoundland south to 
