Birds of Indiana. 997 



its summer home farther north. They have been first noted at Brook- 

 ville, April 1, 1889, and April 35, 1892; English Lake, March 18, 

 1894, al)nndant; Laporte, March 19, 1894, May 1, 1896; Chicago, 111., 

 March 22, 1884, April 14, 1894. In the fall most of them leave by 

 early September, but sometimes they remain later. They are recorded 

 from Plymouth, Mich., September 3, 1894; Chicago, 111., September 

 28, 1894; Bicknell, Tnd., Sejitember 4, 1895. Mr. J. G. Parker, Jr., 

 notes them at Chicago, 111., as late as October 18. 



Tree Swallow. 



From its habit of building in holes in trees, being the only species 

 that selects such sites, it is called "Tree Swallow." It has clung 

 closely to its original nestinu' liabit. Yet, occasionally, it is known 

 to appropriate a Martin box, or to build umlcr thceaves, or in some 

 other favorable |)]ace about a l)uilding. We may expect them event- 

 ually to change their nesting bal)it. Tbey prefer to nest in the vicin- 

 ity of water, but do not always do so. 



Fourteen specimens examined had eaten ()3 beetles, a number of 

 which were weevils; 33 small dragon tlies, 22 winged aphid*, or })lant 

 lice; 10 diptera, including ants and craneflies; 5 hymenoptera, 2 grass- 

 hoppers and one spider (King, Geol. of , Wis., I., pp. 515, 516). The 

 habit of this species, as well as of the two Swallows last mentioned, 

 of skimming the fjrain fields shows tlie insects infesting such places 

 constitutes uiucli of their food. 



147. Genus CLIVIOOLA Forster. 



*241. (16). Clivicola riparia (Linn). 



Bank Swallow. 



Adult. — x\bove, lustreless gray, with a band of same across the 

 breast; remaining under ])arts, white; small tuft of feathers above the 

 hind toe. Tmmatnre. — Tinged more or less with rusty or whitish. 



Length, 4.75-5.50; wing, 3.70-4.25; tail, 2.10-2.25. 



