40 ROCHESTER ACADEMY OF SCIENCE. 



Order MACROCHIRES. Goatsuckers, swifts, etc. 

 Family CAPRIMULGIDAE. Goatsuckers, etc. 



417. Antrostomus vociferus (Wils.) Whip-poor-will. 



Summer resident ; fairly common in secluded glens and wood- 

 lands. May 2 Sept. 15. Beneficial. 



420. Chordeiles virginianus (Gmel. ) Nighthawk. 



Summer resident ; often seen in large towns and cities. May 10 

 Sept. 25. Common in August and Sept. about wide fields and 

 open woods. Seen circling in air at early evening. Nest, usually on 

 flat roof of large buildings ; eggs 2. Beneficial. 



Family MICROPODIDAE. Swifts. 



423. Chaetura pelagica (Linn.) Chimney swift. 



Summer resident ; abundant. Apr. 25 Sept. 30, Practically 

 seen only in the air. Nest, in chimney, rarely in gable of barn ; May 

 15 July 10 ; eggs 4-5. Beneficial. 



Family TROCHILIDAE. Hummingbirds. 



428. Trochilus colubris Linn. Ruby-throated hummingbird. 



Summer resident ; common. May 10 Sept. 10. Found in 

 dooryards, orchards and woods. Nest, on limb of apple, maple, 

 beech or tamarack tree, 8-40 feet from the ground ; June 5 July 20 ; 

 eggs 2. Beneficial. 



Order PASSERES. Perching birds. 

 Family TYRANNIDAE. Tyrant flycatchers. 



444. Tyrannus tyrannus (Linn) Kingbird. 



Summer resident; abundant. May i Sept. i. Frequents 

 orchards, fields and roadsides. Nest, usually in apple tree or thorn 

 bush ; May 20 June 15 ; eggs 3-5. Mostly beneficial, sometimes 

 destroys bees, but mostly drones. 



452. Myiarchus crinitus (Linn.) Crested flycatcher. 



Summer resident ; fairly common. May 6 Aug. 20. Found 

 in groves and woodlands. Nest, in hollow tree or stump, or deserted 

 woodpecker's hole ; May 30 June 15 ; eggs 4. 



