34 BIRDS OF MADISON COUNTY 



188. (758a) Hylocichla ustulata swainsonii (Cab.). 



Olive-backed thrush. 



Fairly common during spring and fall migrations. 

 Arrives about May 10. 



189. (759b) Hylocichla aonalaschkae pallasii (Cab.). 



Hermit thrush. 



Transient visitant. Common. Arrives about May 

 1st. Departs about 15th. 



190. (761) Merula migratoria (Linn.). 



American robin. 



An abundant summer resident. Breeds. Arrives 

 the latter part of March. Departs late in October. 



191. (766) Sialiasialis (Linn.). 



Bluebird. 



An abundant summer resident. Breeds. Arrives 

 about April 1st. Departs the first of November. 



Passer domesticus. 



English sparrow. 



An abundant pest. Breeds. 



