130 



flock of eighty Bank Swallows and twelve Purple Martins. After this 

 date only the usual summer numbers of the breeding species were seen; 

 there were no more migrants. The Purple Martin which seemed to be 

 less affected by weather conditions after arrival than the other species, 

 was orthodox in its arrival which occurred on a cloudy morning after a 

 clear night. 



There is no other record so complete; and it can not be stated whether 

 this relation between weather and migration is a fixed one, but in regard 

 to the migratory movements of Swallows in 1903, it may be said that the 

 relation was so close that one could predict the numbers to be found on 

 any day from the condition of the weather. 



140. [612] Petrochelidon huiifrons (Say). Cliff Swallow. 



Abundant migrant and common summer resident. April 12 to Sep- 

 tember 14. Nest and four eggs in University collection (C. H. B.). 



MIGRATION RECORD. 



141. [613] Hirundo erythrogastra Bodd. Barn Swallow.*" 



Abundant migrant and summer resident. April 9 to September 12. 

 May 12, 1903, nest about two-thirds completed on a rafter in a loft of a 

 barn (C. G. L.). 



