ROUGH-AVINGED SWALLOW 



141 



harbors. The Bank Swallow occurs over lakes and streams 

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

 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-wixGED SwALLOW. Stelgidoijteryx serrijyennis 



5.75 



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

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

 cinnamon. 



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

 ledge of rock. 



The Eough-winged Swallow is a summer resident of the 

 lower Hudson Vallev, locallv common at Riverdale, Hast- 

 ings, and Sing Sing ; it occurs 

 here and there in northern JSTew 

 Jersey, and in southwestern 

 Connecticut as far north as Hart- 

 ford. It breeds locally in Berk- 

 shire County and at Longmea- 

 dow, Mass., and will probably 

 be found elsewhere in western. 

 ISTew England. It arrives in 

 April and leaves in August. 



The Rough-winged 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 





Fig. 31. Rough-winged 



Swallow 



