514 NOTES ON SOME OF THE 
_ In my “Catalogue of Massachusetts Birds” I first advanced 
the opinion that the so-called Turdus “Aliciæ” Daird, or 
Gray-cheeked Thrush, was but the paler form of this species. 
To this view other writers have taken exceptions. | Prof. 
Baird, in his "Review of American Birds" (p. 21), summa- 
rily disposes of the matter by presuming that I had not seen 
what he called T. Alicia. Dr. Coues, in his “List of the 
Birds of New England,” in referring to my remarks on the 
subject, says they “illustrate very fully the well-known sea- 
sonal and other variations to which 7. Swainsonii and T. 
'uscescens are subject,” and adds that I appear to have been 
“autoptically unacquainted” with 7. Aliciæ at the time of 
Writing them. Since that time I have still farther considered 
the subject, and have had large series of authentic specimens 
of both T. Swainsonii and Aliciæ (mostly so labelled at the 
Smithsonian Institution) for comparison with Massachusetts 
specimens, and after five years of additional experience I am 
now more than ever convinced that the opinion there ex- 
pressed is correct. Some years the Alicie type is quite 
common; again more rare. Generally, however, the ma- 
Jority of the specimens range between the forms considered 
as typical respectively of T. Swainsonii and T. Aliciæ.* 
Mockine Birp. Mimus polyglottus Boie. Several in- 
stances of the occurrence of this southern species in the 
vicinity of Springfield other than those previously recorded 
ive come to my knowledge during the last five years, a 
also one of its occurrence in the eastern part of the state. 
Coynecticur WARBLER. Oporornis agilis Baird. Con- 
cerning this species Mr. C. J. Maynard writes: “Perhaps not 
as rare as is generally supposed by collectors, especially in 
autumn. A specimen was shot by Mr. L. L. Thaxter in New- 
ton Centre, September 16th, 1867. Another was taken by 
myself in September, 1868, in a thick swamp near Newton.” t 
i De s in tas oe atii i 
| «Fora fuller discussion of this subject, see my paper in the Memoirs of the Boston 



b 
 Poetly of Natural History, Vol. i, part iv (1868), p. 507. 
.. NS. notes, received June, 1869. à 
ee 



