BIRDS OF EASTERN MASSACHUSETTS. 
127 
ALCEDINIDJE, — The Kingfishers. 
118. Ceryle 2loy on, Bom.— Belted Kingfisher. Com- 
mon summer resident. Breeds. Frequents the neighbor- 
hood of streams and ponds. Arrives from March 21st to 
April 11th; remains into November; but I never have 
seen it in winter, at which time it may rarely occur. 
CAPRIMULGID^, — The Goatsuckers. 
119. Aiitrostomus vociferns, Boie. — Whippoor- 
will, Common in the wild districts, where its rapid but in- 
describably mournful notes may be heard in the evening 
twilight. It also sings in the early dawn. Arrives from 
May 19th to 24th. Breeds, nesting on the ground. 
120. Chordeiles popetue, Baird. — Night-Hawk 
Bull Bat.” Common summer resident. Breeds, nest- 
ing on the ground. Arrives from April 7th to May 23d. 
Much more diurnal in its habits than the preceding, often 
seen flying about at midday. By the latter part of August 
it migrates in large, straggling flocks, moving day and 
night. While at rest in the daytime, it usually sits lon- 
gitudinally upon a large limb of a tree ; the peculiar struct- 
ure of its feet rendering it impossible for it to clasp the 
limb and sit transversely, as is usual with other birds. 
CYPSELID^, — The Swifts, 
121. Chaetura pelasgia, Steph. — Chimney Swifts 
Chimney Swallow.” Abundant summer resident. Breeds, 
nesting in unused flues in chimneys. Arrives from May 
1st to 11th; have seen it as late as September 14th. 
