THE ROUGH-WINGED SWALLOW. 



335 



perpendicular surfaces, for they are bent forward, and the bird is not known 

 to cling head-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 eneniv which might be circumvented in this wav. 



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

 flight than that of its foil. Its aerial course is more dignified, leisurely, less 

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

 Martin, or even nest side bv side with it, it has a wider latitude for choice and 



'fuktjn iit Oregon. 



Fiioiu by H. T. Bolilman ,ind 11'. L. ftnUy. 



BABY ROUGH-WINCS. 



is not hampered by local tradition. If it burrows in a bank it is quite as likely 

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

 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 pair I knew excavated a nest in the gravelly bank of an ungraded lot 

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

 Seattle. These birds were unsuccessful, but another pair, which enjoyed the 



