706 GEOLOGICAL SURVEY OF THE TERRITORIES. 



Family 10. — Hirliisidinid^, the Swallows. 

 Hirundo lunifrons, Say., (cliff swallow :} 



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Cotyle riparia, Boil., (bank swallow :) 



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Family IG. — FRiNGiLLiDyi];, the Sparrows. 

 Pooecetes gramineus^ var. conjinis, Baird, (grass fincli :) 



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Coturniculus passerinus, Boiiap., (yellow-winged sparrow :) 



I found tliis nest on the ground, by the side of a sage-bush. It was 

 very light, being carelessly constructed of fibrous roots and grasses, 

 lined with finer pieces of the same. It measured 4.35 inches in external 

 diameter, and contained four white eggs, spotted with reddish brown. 



Chondestes grammaca, Bonap., (lark-finch :) 



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