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 the pit 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 Cooperi, Nutt. Man., vol. i. p. 282. 

 Tyrannus borealis, Northern Tyrant, Swains, and Rich. F. Bor. Amer., vol. ii. p. 141. 

 Olive-sided Flycatcher, Muscicapa Cooperi, Aud. Orn. Biog., vol. ii. p. 422; vol. v. p. 422. 



