596 NORTH AMERICAN BIRDS. 



instance betraying? the position of her nest hy running ont, as he ap- 

 proached, from the hush heneatli which it was concealed. With elevjited 

 tail, running rapidly and silently away, they disappeared among the shrub- 

 bery. In such cases a careful examination of tlie spot was sure to result 

 in finding an artfully concealed nest, either eml)edded in the ground or a 

 few inches above it in the lower branches of the bush. He did not find this 

 species east of the northern end of CJreat Salt Ljike, nor was it seen in the 

 neighborhood of Salt Lake City, where the other species was so abundant. 



The eggs of this species differ very essentially from those of the P. hiline- 

 ata. They are oblong in shape, have a light greenish ground, marked all 

 over the q<^)I^ with very fine dots of a reddish-brown, and around the larger 

 end with a ring of confluent blotches of dark purple and lines of a darker 

 brown, almost black. They measure .80 by .60 of an inch. They resemble 

 very closely a not unconmion variety of the eggs of the Spizdlct pusilla. 



