418 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
nose. Then there is a single or double first note followed by a long 
Veery-like vibration, sweet yet mournful. As would be expected, 
the song is not noticeably different from that of Bicknell’s Thrush 
as heard in the White Mountains of New England and does not, as 
has been stated, resemble that of the Hermit Thrush. 
We obtained only one specimen of this species, a worn female at 
Cape Charles in July. The measurements of this specimen which 
are as follows: wing 92 mm., tail 64 mm., bill 14 mm., tarsus 24 
mm., correspond to those of a large Bicknell’s Thrush or a small 
Alice’s Thrush. A series of specimens from Labrador might throw 
interesting light on the standing of Bicknell’s Thrush. 
Hylocichla ustulata swainsoni (Cab.). 
OLIVE-BACKED THRUSH. 
Common summer resident in the interior and on the southwestern 
coast. 
Speciinens were obtained by Drexler at Rupert House on June 13th 
and in July, 1860. Low says that it was very common along the 
upper Hamilton River; it was seen May 16th and eggs were found on 
June 30th. A set of four eggs was taken on the Hamilton River on 
July 3, 1894. Spreadborough observed it as far north as Fort George, 
James Bay, in June, 1896. 
We did not observe the bird but our observations extended but a 
short way from the Arctic coastal zone. It is a bird of the Canadian 
zone pushing its way in places into the Hudsonian zone. 
Hylocichla guttata pallasii (Cab.). 
Hermit THRUSH. 
Common summer resident in southern part. 
The Bowdoin college expedition brought back a specimen of this 
thrush from Chateau Bay taken July 14th and there is another in the 
Bangs collection from Lance au Loup taken June 1, 1899. Low says 
it is ‘‘not rare at Lake Mistassini.” Spreadborough says he observed 
it only twice, on July 4th and 24th, 1896, in the interior of the penin- 
sula. 
