64 IOWA ACADEMY OF SCIENCE Vol. XXVI, 1919 



141. Petrochelidon lunifrons lunifrons. Cliff Swallow. A rare 

 spring migrant but common in the fall. I have only two records 

 in spring, May 11. 1914, and May 22, 1915, but from August 3 to 

 September 20 they are quite numerous in the great swallow flocks 

 found over the meadowland. A farmer living north of Marshall- 

 town informed me that a colony nested on his barn in 1914 and 

 came back in 1915, but their nests were destroyed "because they 

 made such a mess." The remains of one nest were still on the barn 

 at the time of my visit on July 20, 1915. 



142. Hirundo crythrogastra. Barn Swallow. The barn swal- 

 low is a common summer resident from April 23 to September 28. 

 Almost every farm had one or more pairs of this swallow nesting 

 about the buildings. Usually the nests were plastered on beams or 

 rafters high up in the big hay barns and were consequently inac- 

 cessible. One containing four young was inspected June 29, 1915, 

 at Mormons Ridge. The barn swallow was one of the most nu- 

 merous species in the great fall flocks. 



143. Iridoprocne bicolor. Tree Swallow. A tolerably common 

 migrant from April 3 to May 29 and July 5 to September 28. One 

 of the less common species, being greatly exceeded in numbers by 

 the barn and bank swallows, and slightly outnumbered by the rough- 

 winged swallow. 



144. Riparia riparia. Bank Swallow. A common summer resi- 

 dent from April 15 to September 28. Many banks along the river 

 were honeycombed with the nesting holes of this species. No at- 

 tempt was made to dig any of them out and so definite nesting data 

 are not available. In the spring migration this was the most 

 abundant species and in the fall it equalled the barn swallow in 

 numbers. 



145. Stelgidopteryx serripennis. Rough-winged Swallow. A 

 common summer resident from April 23 to September 7. Ranked 

 third in abundance among the swallows. Bred in the same situa- 

 tions as the bank swallow. A pair were noted feeding fledglings 

 on July 10, 1915. 



146. Bombycilla ccdrorum. Cedar Waxwing. An irregular 

 migrant sometimes appearing in great numbers. In 1913 they did 

 not appear until May 10 and were then present in large flocks until 

 June 7. In 1914 they appeared with the early robins, the first being 

 noted on March 12. They were noted in small numbers until 

 March 29. The only other spring record for 1914 was a flock of 

 five seen on May 17. In 1915 a flock was noted on April 1 and the 

 species was not again found until May 13, when a few appeared 



