ToDr> : Birds oi' 1''.rik and Pkesque Isle. 593 



ing closely with the migration period of the last species. It was 

 particularly numerous in the shrubbery along the board-walk. Mr. 

 Sennett took specimens of this thrush on May 21, 1875, and Septem- 

 ber 21, 1S89; Mr. Bacon secured one September 21, 1901. 



235. Hylocichla guttata pallasii. Hermit Thrush. 



The Hermit Thrush occurs as a transient visitant only, apparently 

 uncommon in the spring, but quite plentiful in the fall. It migrates 

 earlier in the spring and later in the fall than the other thrushes. 

 April II, 1875, the date of a specimen in Mr. Sennett's collection, 

 seems to be the earliest spring record available. Mr. Simpson saw 

 several April 26, 1902. Mr. Bacon has secured specimens April 29, 

 1892, April 30, 1893, and May 2, 1891 — the latest spring date. A 

 specimen taken April 24, in deep woods north of Long Pond, was the 

 only specimen noted in 1900. In the fall it arrived and was common 

 on October 3, when the Gray-cheeked and Olive-backed Thrushes 

 were leaving, and remained at least until October 20. At this season 

 it was found mostly in dense covert of bushes and evergreens, usually 

 in scattering companies, silent save for a low call-note. October 7, 

 1894 (Bacon), and October 26, 1889 (Sennett), are additional fall 

 records. 



236. Merula migratoria. Robin. 



This abundant and familiar bird is a summer resident on both the 

 mainland and Peninsula. Mr. Bacon states that an occasional in- 

 dividual remains through the winter, but that it ordinarily arrives the 

 second week in March, sometimes a little later, March 9, 1892, being 

 the earliest record. Although it was already present in numbers the 

 latter part of March, 1900, when our observations began, it was observed 

 in flocks, evidently migrating, as late as April 19. In the fall a small 

 party was seen November 7, this being its last recorded occurrence of 

 the season, although it has been noted by Mr. Bacon as late as Novem- 

 ber 29 (1894). Such birds as stay through the winter are generally 

 seen about mountain-ash trees, the berries of which furnish an unfail- 

 ing food supply (S. E. B[acon], Oologisl, Albion, N. Y., V, 1888, 

 60). 



237. Sialia sialis. Bluebird. 



"A summer resident, common, although never so numerous as the 

 Robin, and never known to stay through the winter. I have noted it 

 as early as February 22 (1888), but it usually arrives a little later. 



