

KEY TO T1IK BIIIDS < >F KASTKKN NORTH AME11ICA. 



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Back, steel blur: underparts, einnamon brown: tail, very deeply forked. 



Barn Swallow. 



Chelidon erythrogastra. 

 See Xo. 461. 



General plumage, sooty brown ; showing 

 : faint -rrecnisli tin^c on the upper parts; 

 throat, ashy white; tail feathers, with 

 sharp spines, or points formed hy the 

 shafts of the feathers, extending beyond 

 the webs. The swifts belong to the 

 Family Micropoiliclie aud are widely sepa- 

 rated generic-ally from the swallows; but 

 persons unfamiliar with birds might look 

 for them under the same family. 



Chimney Swift. 



Cha-tura pclayirn. 



See No. 340. 



