BIRDS OF YARMOUTH AND \I(IXITY. ALLi:.\. 95 



7oN:i Ilijlocichla ustulata sicdinso/ii (Tschutli). Oi.ivp:- 



BACKED Thrush. — Only twice obsorved. Aug. 11, 

 1904, one; July 10, 1905, four or five, probably one 

 familJ^ 



759b. Hylocichla guttata pallasi (CsLh.). Hermit Thrush. — 

 Common summer resident. First appearance (4 

 3^ears) Apr. 26. Last appearance (5 years) Oct. 22. 



761. Planesticus migratorius migraiorius (Linn.). American 

 Robin. — Abundant summer resident. A few remain 

 over all winter. First appearance (10 years) Mar. 

 25. Become common ((11 years) Mar. 29. Nest- 

 ing commonly by Apr. 30. Last appearance (8 

 years) Nov. 14, 



766. Sialia sialis sialis (Linn.). Bluebird. — Only seven 

 observations in all: five in fall and two in spring. 

 I have been told that they nested here in Yarmouth, 

 and at Carleton. In May, 1911, a pair appeared 

 and paid some attention to nesting boxes on a farm 

 about three miles from Yarmouth but in a day or 

 two they disappeared. 



