436' NORTH AMERICAN BIRDS. 



Dr. Newberry olwerved this species quite coimnou in California, but could 

 obtain no specimens, owing to the height at which they tlew. He saw noth- 

 ing of it in Oregon. 



Two specimens of this species obtained in Mexico by M. de Saussure are 

 in the collection of l;r. Sclater. 



Mr. Uidgway saw on the Truckee IJiver, near Pyramid Lake, in May, 

 ISOS, what he suppo.ses to have been this_species. It wa,s not' common,' 

 only a few individuals being observed every evening just before dusk, Hying 

 overhead exactly in the manner of Chimney Swallows ((7. pdaijica), which 

 they also exactly resembled in appearance. Tliey Hew so high that speci- 

 mens conld not be obtained. They were entirely silent, and appeared at no 

 other time than in the evening, iu these respects differing strikingly from 

 the eastern species. 



