FAM. XI. SWALLOWS 



107 



Bank Swallow 



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

 tins. (White - bellied 

 Swallow.) 



Length, 5| ; wing, 4| 

 (41-5); tail, 2| ; culmen, ]. 

 North America ; breeding 

 from the Ohio Valley north- 

 ward, and wintering from 

 the GuU States to Central 

 America. 



6. Bank Swallow 



(616. Clivicolariphria). 

 — 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|-4l-) ; tail, 2 ; culmen, 

 a little over \. Northern 

 hemisphere; breeding 

 from the Gulf States 

 ''ji: ^~^-. ...ii^® ~~'^~' northward, and winter- 



" ' -' --^Wf ing from Central to South 



America. 



7. Rough-winged 

 Swallow (617. Stelyi- 

 ddpteryx serriphinis). 

 — A dull, brownish- 

 gray swallow, with 

 white only on the 

 The adult has recurved 



Eongh-winged Swallow 



lower belly; tail slightly notched. 



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



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



