58 ROCHESTER ACADEMY OF SCIENCE. 



756. Hylocichla fuscescens (Steph.) Wilson's thrush. 



Summer resident ; common. May 6 Sept. 10. Migrates by 

 night. Found in copses and woodlands. Nest, on or near the 

 ground, May 20 June 30. Eggs, 4-5. 



757. Hylocichla aliciae (Baird) Gray-cheeked thrush. 



Transient visitant ; fairly common. May and October. According 

 to the Auburn List this species is more common than the olive-backed 

 thrush in Cayuga Co. ; but the writer has found it much less common 

 in Springville, Rochester and Canandaigua. 



758a. Hylocichla ustulata swainsonii (Cab. ) Olive-backed thrush. 



Transient visitant ; common. May 8-30 ; Sept. 20 Oct. 15. 

 Migrates by night. Found in shrubbery of dooryards and in deep 

 woods. Nest found in YatesCo., June 13, 1897, by Verdi Burtch. 



759b. Hylocichla aonalaschkae pallasii (Cab.) Hermit thrush. 



Transient visitant; common. Apr. 23 May 8; Sept. 25 Oct. 30. 

 Migrates by night. Found in shrubbery of dooryards as well as in deep 

 forests. Nest found in Yates Co., May 29, 1898, by C. F. Stone. 



761. Merula migratoria (Linn.) American robin. 



Abundant summer resident, rare in winter. March 3 Nov. 20. 

 Migrates by day, usually in scattered companies. Found in door- 

 yards, orchards and groves, feeding mostly in open fields. Nesting 

 site varied, usually in a low tree. Apr. 15 July 5. 2-3 broods ; 

 eggs, 35, usually 4. Fond of cherries but mainly beneficial. 



766. Sialia sialis (Linn.) Bluebird. 



Summer resident ; common. Mar. 5 Nov. 20. Migrates by 

 day in small companies or pairs. Found in orchards, pastures and 

 stump-lots. Nest, in a box or hollow tree ; Apr. 15 July 8 ; 2 or 3 

 broods ; eggs, 4-6. Beneficial. 



Passer domesticus (Linn.) English sparrow. 



Introduced. Strictly resident. Very abundant. Unworthy of 

 a place among our birds. Gradually crowding out the wren, the 

 martin, and the bluebird. Becoming a scourge to the grain fields 

 and smaller garden fruits. 



