ZOOLOGICAL DEPARTMENT. 



281 



Blanc Island; "common summer resident at Mackinac Island" (S. E. White) 

 ^'abundant at Albion, St. Joseph, and Palmer, Marquette Co." (O. B. Palmer) 

 "common at Iron Mountain" (E. E. Brewster); breeds; two or three brooded 

 "usually sinf^le brooded in Ohio and Indiana'" (A. W. Butler); "common on 

 Keweenaw^ Point" (E. W. Durfee); nests in chimneys, rarely in hollow trees or 



Head and nincronate tail-feather of ('himney Swift, reduced. 



barns, occasionally in nests of barn swallows which are first repaired, one case 

 reported; nests made of twigs glued with a secretion formed by the bird; eggs 

 four to six, white; feeds wholly on insects; migrates in fall, often leaving, it is 

 reported, young birds in the nest. These birds are often considered a nuisance in 

 houses having large chimneys; "dates of arrival for seven years at Bay City are 

 between April 26 and May 18" (N. A. Eddy). 



Suborder TROCHILI. Hummingbirds. 



Family TROCHILIDiE. Hummingbirds. 

 Genus TBOCHILUS Linn. 









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f 

 si 



Ruby-throated Hummingbird, male and female and nest, slightly reduced. 



HP) 



