FAM. XL SWALLOWS 



107 



Bank Swallow 



hollows in trees, but some are built in boxes, like the mar- 

 tins. (White - bellied 

 Swallow.) 



Length, 5| ; wing, 4| 

 (4J-5); tail, 2^ ; culnien, \. 

 North America ; breeding 

 from the Ohio Valley north- 

 ward, and wintering from 

 the Gulf States to Central 

 America. 



C. Bank Swallow 



(616. Clivicola ripclria). 



— A small, common, 



dull, brownish-backed 



swallow, with white 



throat and belly, and a broad band of grayish-brown on the 



breast. The tail is slightly notched. There is a curious tuft of 



feathers above the hind toe. This bird breeds in great colonies 



in appropriate sandy banks, and if the locality is suitable, is 



very abundant. (Sand 



Martin.) 



Length, 5 ; wing, 4 

 (3|-4|^) ; tail, 2 ; culmen, 

 a little over |. Northern 

 hemisphere ; breeding 

 from the Gulf States 

 northward, and winter- 

 ing from Central to South 

 America. 



7. Rough-winged 

 Swallow (617. Stelgi- 

 d6pteryx serripennis). 

 — A dull, brownish- 

 gray swallow, with 

 white only on the 

 lower belly ; tail slightly notched. The adult has recurved 

 booklets on the outer edge of the first primary. The young 

 lack these, and have the breast somewhat tinged with chestnut. 



Rongli-wiiiged Swallow 



