EOUGH-WINGED SWALLOW 141 



harbors. The Bank Swallow occurs over lakes and streams 

 near steep banks of sand. The other three — the White- 

 bellied Swallow, the Eave Swallow, and the Purple Mar- 

 tin — are more or less local, and may be wholly absent from 

 any given locality. Where the Eave Swallow occurs at all, 

 it is generally found in large colonies. The White-bellied 

 Swallow is common in the Maine wilderness, nesting in dead 

 trees, and is an abundant migrant along the salt marshes and 

 where bayberries abound, hovering over the marshes by day, 

 and gathering at night in enormous flocks. 



EouGH-wiNGED Swallow. Stelgidopteryx serripennis 

 5.75 



Ad. — Upper parts dark brown; throat and hreast brownish- 

 gray; belly white. Im. — Similar to adult, but wiugs tinged with 

 cinnamon. 



Nest, in holes in sand banks, or in a crevice of masonry or a 

 ledge of rock. 



The Rough-winged Swallow is a summer resident of the 

 lower Hudson Valley, locally common at Riverdale, Hast- 

 ings, and Sing Sing ; it occurs 

 here and there in northern New 

 Jersey, and in southwestern * 

 Connecticut as far north as Hart- 

 ford. From the rest of New 

 England it is apparently absent, 

 though a pair has bred for many " ' *J , 



years in a limestone quarry at v vc ■ 



North Adams, Mass. It arrives ^ 



in April and leaves in August. ^'<^' 31- Eough-winged 



_, ^ , . _ „ ,- Swallow 



The Eough-wmged Swallow 

 often breeds in banks with Bank Swallows, and can then 

 hardly be distinguished from the Bank Swallow except by 

 a trained observer ; the upper parts are very similar, but 

 the throat of the Rough-wing is darker, and the middle of 



