82 NESTS AND EGGS OF N. A. BIRDS. 



thinly covered with small twigs, grasses and a few feathers. The 

 eggs are white, from four to six in number, oval in shape, and 

 average .72 by .47, 



158. STELGIDOPTERYX SERRIPENNIS. 



ROUGH- WINGED SWALLOW. 



This Swallow is found throughout the whole United States. 

 They construct their nests in the crevices between the stones in 

 the walls and arches of bridges, and almost invariably directly over 

 running water, in some instances a little above the surface of the 

 stream. I have found their nests in a clay bank six feet from the 

 edge of the water. 



Their nests are often found in the crevices in the rocks of stone- 

 quarries. They are composed of dry grasses, straws and leaves, 

 lined with a few feathers. They are similar to those of the Bank 

 Swallow. The eggs, five or six in number, are pure white and 

 average .75 by .53. 



FAMILY Caerebidse.— Creepers. 



159. CERTHIOLA BAHAMENSIS. 



BAHAMAS HONEY CREEPER. 



This species belong properly to the Bahaman group of the West 

 Indian Islands. It was found at Indian Key, Florida, in January, 

 1858, where it appeared to be not at all rare. 



The nests are described as usually built in low trees and bushes; 

 they are composed of silk-cotton, and dry grasses. Some of 

 these nests are made in the form of a globe, with a small opening 

 below the side. The walls are very thick. The eggs are described 

 as of a "greenish-white, thickly but indefinitely dashed with red- 

 dish at the larger end." 



FAMILY Tanagridae.— Tanagers. 



160. EUPHONIA ELEGANTISSIMA. 



BLUE-HEADED EUPHONIA. ** 



