61 



GENUS CHORDEILES SWA'INSON. 



Night Hawk. 

 5 158. Chordeiles virginianus (Gmel.). NIGHT HAWK ; BULL-BAT. 



Throughout the northern part of the State a common summer resident, breed- 

 ing in suitable localities; further south they are not common in summer and but 

 few breed. In some cities they have been found breeding upon the flat roofs of the 

 houses. They arrive during May and June and depart in September. It is a very 

 interesting sight to see, at dusk some pleasant September evening, the great num- 

 bers migrating along eome water-course, for then they may be seen to best advan- 

 tage. 



SUBORDER CYPSELI. SWIFTS. 



FAMILY MICROPODID.E. SWIFTS. 



SUBFAMILY CrlJ^rURIN^E SPINE-TAILED SWIFTS. 



GENUS CIIJ3TURA STEPHENS. 



Head and tail feather of Chimney Swift; nat. size. 

 *159. Chaetura pelagica ( Linn.). CHIMNEY SWIFT. 



Common summer resident throughout the State Breeds. In some localities 

 colonies of these birds may still be found occupying hollow trees as nesting site?. 

 I have also known them to build their nests in a shed upon a beam. They are 

 such nuisances in houses with large, old-fashioned chimneys that many persons 

 cover the tops of the chimneys with coarse wire-cloth to exclude the birds. 



