Note.—A loud nasal “peent.”
Nest.—None, the two mottled gray and white eggs being laid on bare rocks in pastures, on the ground or underbrush, or on gravel roofs in cities; size 1.20 × .85.
Range.—United States east of the Plains, breeding from Florida to Labrador; winters south of United States. Three sub-species occur: 420a. Western Nighthawk (henryi), west of the Plains; 420b. Florida Nighthawk (chapmani); 420c. Sennett Nighthawk (sennetti), a pale race found on the Plains north to Saskatchewan.
TEXAN NIGHTHAWK
421. Chordeiles acutipennis texensis
This species is found in southern Texas and New Mexico. It differs from the last in having the primaries spotted with rusty, like those of the whip-poor-will.
CHIMNEY SWIFT
423. Chætura pelagica. 5½ inches
Unused chimneys of old dwellings make favorite roosting and nesting places for these smoke-colored birds. They originally dwelt in hollow trees until the advent of man furnished more convenient places, although we would scarcely consider the soot-lined brick surface as good as a clean hollow tree. Spines on the end of each tail feather enable them to hang to their upright walls, and to slowly hitch their way to the outer world. Throughout the day numbers of them are scouring the air for their fare of insects, but as night approaches, they return to the chimney.