COOPER’S FLYCATCHER— OLIVE-SIDED FLYCATCHER. 
215 
both; that is to say, a yellowish cream-white, with spots of reddish-brown, 
of a light and dark shade. All the nests, three in number, were within 150 
yards of each other respectively. I saw another pair once in a small piece 
of dry pine wood in Mount Auburn one year ; but they did not stay long. 
A third pair I saw the summer before the last, on the edge of the marsh to- 
wards West Cambridge Pond ; these appeared resident. The next pair I had 
the rare good fortune to see in your company, by which means they have 
been masterly figured. It is beyond a doubt M. borealis of Richardson, 
but I believe Mr. Cooper and myself discovered it previously, at least be- 
fore the appearance of Dr. Richardson’s Northern Zoology.” 
In the course of my journey farther eastward, I found this species here and 
there in Massachusetts and the State of Maine, as far as Mars Hill, and sub- 
sequently on the Magdeleine Islands, and the coast of Labrador; but I have 
not yet been able to discover its line of migration, or the time of its arrival 
in the Southern States. 
This species has never been observed in South Carolina, although I met 
with it in Georgia, as well as in the Texas, in the month of April. Accord- 
ing to Mr. Nuttall, it is “a common inhabitant of the dark fir woods of 
the Columbia, where they arrive towards the close of May. We again 
heard,” he continues, “ at intervals, the same curious call, like ’ gh-phebea , 
and sometimes like the guttural sound of p h p-phebee, commencing with a 
sort of suppressed chuck ; at other times the notes varied into a lively and 
sometimes quick p t-petoway. This no doubt is the note which Wilson 
attributed to the Wood Pewee. When approached, as usual, or when calling, 
we heard th e pu pu pu .” A single specimen was shot on the banks of the 
Saskatchewan, and has been described in the Fauna Boreali-Americana under 
the name of Tyrannus borealis. 
Dr. Brewer has sent me the following note : — “A female specimen ob- 
tained by me measures 6^ inches in length, being fully half an inch shorter 
than the male. Nape of the neck, belly, vent, throat, and flanks white ; in 
the latter, continued to the back, so as to be visible above the fold of the 
wings ; a broad olive band across the breast ; in all other respects it resembles 
the male. A nest, which I have examined, measures five inches in external 
diameter, and three and a half inches in internal, and is about half an inch 
deep. It is -composed entirely of roots and fibres of moss. It is, moreover, 
very rudely constructed, and is almost wholly flat, resembling the nest of 
no other Flycatcher I have seen, but having some similitude to that of the 
Cuckoo.” 
Olive-sided Flycatcher or Pe-pe, Muscicapa Coopen , Nutt. Man., vol. i. p. 282. 
Tyrannus borealis, Northern Tyrant, Swains. & Rich. F. Bor. Amer., vol. ii.p. 
141 . 
