200 CHECK-LIST OF NORTH AMERICAN BIRDS. 
SUBORDER CYPSELI. Swirrts. 
Famity MICROPODIDAE. Swirrts. 
SuBFAMILY CHASTURINAS. SpineE-TAILED SwiIrts. 
GENUS CYPSELOIDES STREUBEL. 
Cypseloides StREUBEL, Isis, 1848, 366. Type, by subs. desig., Hemi- 
procne fumigata STREUBEL (Sclater, 1865). 
Cypseloides niger (GMELIN). 
RancE.— Western North America, the West Indies, and northern 
South America. 
a. [Cypseloides niger niger. Extralimital.} 
b. Cypseloides niger borealis (KENNERLY). Black Swift. [422.] 
Cypselus borealis KENNERLY, Proc. Acad. Nat. Sci. Phila., 1857, 202. 
(Simiahmoo Bay, Puget Sound, Washington.) 
RanGE.— Western North America. Breeds from southern British Columbia 
and southern Colorado south to central Mexico; winters in southern Mexico. 
GENUS CHASTURA STEPHENS. 
Chetura STEPHENS, General Zoology, XIII, ii, 1826, 76. Type, by subs. 
desig., Hirundo pelagica LINN&Us (Baird, 1858). 
Chettra peligica (LINNmUS). Chimney Swift. [423.] 
Hirundo pelagica Linnmus, Syst. Nat., ed. 10, I, 1758, 192. (Carolina.) 
RanGcE.— Breeds in eastern North America from southeastern Sas- 
katchewan, Manitoba, central Quebec, and Newfoundland south to 
the Gulf coast, and west to the Plains from eastern Montana to eastern 
‘Texas; winters south of the United States, at least to Vera Cruz and 
Cozumel Island and probably in Central America; casual in southern 
Alberta; accidental in New Mexico and Greenland. 
