392 DAVENPORT ACADEMY OF SCIENCES. 



24. (768). Sialia arctica Swains. Mountain Bluebird. 



This species has occurred accidentally in Illinois, opposite 

 Dubuque, Iowa (Cooke, Bird Migr. in Miss. Val., 1884-85, pp. 

 294-5). Dr. Hoy examined a specimen of this species in a local 

 collection, said to have been shot in Wisconsin across the river 

 from Dubuque, Iowa. In a personal letter to I,. K. he says : 

 ' ' There can be no doubt of this record ; ' ' and adds that ' ' a second 

 specimen was taken near La Crosse late in the autumn of 1856" 

 (Bds. of Wis., p. 134). 



SUMMARY 



Species found more or less regularly in Iowa . . . 308 



Casual or accidental 43 



Imported from Europe i 



Extinct I 



Whole numbers actually recorded in the state . . . 353 



Hypothetical 24 



Number of species treated in this list 377 



