Catalogue of the Birds of Illinois. 185 



Order CYPSELI. 



Family CYPSELID^.— Swifts. 



Genus Ch^:tura, Stephens. 



*154. C. pelasgica (Linn.) Baird. Chimney Swift. Summer sojourner. 

 Usually known as the "Chimney Swallow." 



Order CAPRIMUIiGI. 



Family CAPRIMULGIDtE.— Goatsuckers. 



Genus Antrostomus, Gould. 



*156. A. carolinensis (Gniel.) Gould. Chuck-will's-widow. Summer 

 sojourner in southern counties. Confounded with the following, but note louder 

 and less hurnedly enunciated; habits the same. 



Genus Capriaiulgus, Linnsus. 



*156. C. vociferus, Wils. Whip-poor-will. Summer sojourner. 



Genus Chordeiles, Swainson. 



I*lb7. C. po2)ehte{yiei\\.) BAird. Night Hawk. Summer sojourner. Pop- 

 ularly supposed to be the whip-poor-will, but readily distinguishable on sight 

 by the conspicuous white wing-spot, its partially diurnal habits, and other well- 

 marked characteristics.* 



Order PICI. 



Family PICID^.— Woodpeckers. 



Genus Campephilus, Gray. 



*158. C. lyrincipalis (Linn.) Gray. Ivory-billed "Woodpecker. A former 

 resident in the extreme southern counties, but now extinct in many districts. 



Genus Picus, Linnaeus. 



*159. P. villosiis, Linn. Hairy Woodpecker. Resident; commonly known 

 as the "Big Sapsucker," or " Guinea Woodpecker." 



/ *160. P. puhescens, Linn. Downy Woodpecker. Resident. The well- 

 known "Little Sapsucker," or "Little Guinea Woodpecker." 



*Mr. Nelson (p. lU) gives " var. hrnri/i, Cass.," as occurring' and breeding in Cook 

 county. We iiave, in conjunction with Mr. Nelson, compared the specimens referred 

 to, with typical examples of the western form, and conclude that they are merely 

 somewhat pale examples of the eastern bird, or true popctue, as restricted. 



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