FAUNAL AREAS I 3 
ceriulescens, Dendreca coronata, Dendreca maculosa, Dendreca black- 
burnie, Helminthophilarubricapilla, Junco hiemalis, Zonotrichta albicollis, 
Spinus pinus ?, Loxia curvtrostra minor ?. 
It may be added that of these species, the Red Crossbill (Zoxza 
curvirostra minor) and the Pine Siskin (Spenus pinus) breed in 
the State very irregularly so far as known, and may, because of 
their erratic habits in this respect, be left out of consideration in a 
discussion of our faunal areas. In this connection it is also inter- 
esting to note the occurrence of the Tennessee Warbler (e/min- 
thophila peregrina), a bird of the Upper Canadian zone, which 
was recorded by Dr. W. Faxon, as seen on Mt. Greylock, July 15 
and 16, 1888, at about 3,000 feet altitude. 
Hudsonian: The claim of this life zone to a place among the 
faunal areas of Massachusetts rests at present, almost solely on 
the occurrence of Bicknell’s Thrush (Aylocichla alicia bicknelli) as 
a regular summer resident near the summit of Mt. Greylock 
(3,505 feet). This bird is generally considered an Hudsonian spe- 
cies, but it ranges into the upper Canadian zone in favored locali- 
ties, as in the instance under consideration; Mention may be 
made here of the occurrence of an Hudsonian Chickadee (/arus 
hudsonicus) on the 5th of June, £896, on the edge of a dense cedar 
swamp in Plymouth County.! This swamp was of considerable 
extent, and supported a small number of Canadian species of birds. 
Although this record does not necessarily indicate that the Hud- 
sonian Chickadee is, or ever was a breeding bird of Massachusetts, 
it at least shows that there aré areas in the State where, we may 
assume, the bird finds congenial surroundings. 
To sum up the entire discussion, Massachusetts belongs in the 
main to the Transition and Canadian life zones, the Transition 
occupying much of the area of less than 2,000 feet altitude, and 
the Canadian corresponding to the area above that level. A tinge 
of the Upper Austral fauna reaches the westem valley bottoms, the 
south shore and certain portions along the east coast. A mere 
trace of the Hudsonian fauna is found on the summit of Mt. Grey 
lock at an altitude of about 3,500 feet. 
1Chadbourne; Auk, Vol. XIII, No. 4, Oct., 1896, p. 346. 
