THE ROUGH-WINGED SWALLOW. 



335 



perpendicular surfaces, fur the_\- are bent forward, and tlie Ijird is not known 

 to cling liead-downward. It is eas_\' to see how the bird might brace its wings 

 against the sides of its nesting tunnel to prevent forcible abduction, but no one 

 knows of a possible enemy which might be circumvented in tliis way. 



Again, the Rough-winged Swallow has a steadier, rather more labored 

 flight tlian that of its foil. Its aerial course is more dignilied, leisurely, less 

 impulsive and erratic. In nesting, altho it may include the range of the Sand 

 Martin, or e\'en nest side b\- side with it, it has a wider latitude for choice and 



Taken 111 Oregon, 



fhoio by H. r. Bohh 



and iV. I., t-tnicy. 



B.\BV ROUC.HWINGS. 



is not ham])ered In local t radii inn. If it burrows in a bank it is (|uite as likely 

 to dig near the bottom as the top. Crevices in masonry* or stone cpiarries, 

 crannies and abutments of bridges or even holes in trees, are utilized. In 

 Lincoln County where cover is scarce and the food supply attractive. I found 

 them nesting along irrigating ditches with banks not over two feet high. One 

 guileless ])air I knew e.xcavated a nest in the gravelly bank of an ungra<led lot 

 only three feet above the sidewalk of a prominent street, Denny Way, in 

 Seattle. These liirds were unsuccessful, but another ]iair. which enjoyed the 



