1SS4.I Brewster o)i /-i/rdx of Herk^hirc County, Mass. I C 



least on (iravlock. was drawn sliarpK at an clcNation of ]:)rol)al)l\ 

 not less than 2^00 teet. Tlie onl\' true Canadian birds wliicli I 

 found in any numbers lielow this Hue were Deitdroeca maculosa. 

 GcotJtlypis phildelapJiia .i\w(\ yiotcn hioiialis. Al)o\e it T7(rdits 

 s^vahisoni ^ Anorthitra Jiicmalis., Dendroeca cceridescens^ Geoth- 

 lypis Philadelphia, and Zoiwtrichia albicollis were abundant 

 and unmistakably breeding, while Sitta cauadetixis and Sphyra- 

 pictis varif/s were moderately common, and Dendrceca black- 

 bitriuv and Empidoiax flaviventris at least sparingly repre- 

 sented. 



In addition to these there were also the northern but not 

 strictly Canadian forms Alviodioctes canadensis and Contopus 

 borealis : the former ranging from the base to the summit, the 

 latter confined to the area aboye the line just indicated. Rather 

 curioush', Tiirdiis pallasi and Dendroeca maculosa ^yere not 

 found above this line although both extended well up to it. 



Among the species just mentioned four, viz., T'7(rd?is stvain- 

 soni. Dendroeca maculosa. Geothlypis Philadelphia., and 

 Ejnpidonax flaviventris., have not, to my knowledge, been 

 previously found summering in Massachusetts, and Anorthura 

 hiemalis has been detected only once (Lynn; see Bull. N. O. 

 C, Vol. VIII. pp. 119, 120). Of the others, Turdtis pal- 

 lasi. Myiodioctes canadensis, ynjico hiemalis. and Contopus 

 borealis have been long known to breed sparingly or locally ; 

 Dendroeca ccerulescens has been found nesting in Connecticut 

 (Ibid., Vol.1, pp. 1 1-13) , as well as occasionally observed during 

 summer in the western part of Massachusetts ; Zonotrichia albi- 

 collis has been found breeding (a single instance) at Framingham 

 (Ibid., \'ol. V, p. ^3), and Sitta canadensis. Dendroeca black- 

 burnce. and Sphyrapicus varius have been recorded on more or 

 less good authorits' as occurring in summer in various parts of 

 the State. 



To return to the general subject. The nearl\- unmixed Alle- 

 ghanian character of the region at large is so strongly marked that 

 Graylock \x\d\ be fith' characterized, in faunal language, as a 

 Canadian island rising from an Alleghanian sea. Like the Cat- 

 skills and some other outlying districts of the Canadian system, it 

 is pi'obably cut oti' from the mainland of sucli non-migrator^• 

 Canadian forms as Parus hudsonius. Perisoreus ca?/adensis. 

 and Canace canadensis^ but, on the other hand, it seems to 



