348 COOPER'S HA WK. 



crested Flycatcher by the darker olive of the upper parts, and 

 from the Yellow-bellied Flycatcher by its entire lack of the 

 bright yellow beneath, as well as by the absence of the 

 clear greenish tinge so distinctive in the upper parts of the 

 latter. Its voice, habit of location, and also the structure 

 of its nest, differentiate it very clearly. Its ordinary note 

 is a. pip or chip, and what is sometimes called its song has 

 been written che-bee-u. Indeed, a careful study of the more 

 prominent notes of the smaller Flycatchers will distinguish 

 them all. 



The nest, which, according to the local habit of the bird, 

 is in some swampy region, is placed in the upright fork of 

 a bush or sapling, is quite compact, and externally bears 

 indeed no small resemblance to that of the Yellow Warbler, 

 except that it is a little larger. The outside is of gray fi- 

 brous material, intermixed with the bleached blades of dried 

 grasses; the inside is of fine dried grasses, closely laid, and 

 the whole structure is more or less mixed with vegetable 

 down. As is the case with most Flycatchers, the interior 

 of the nest is large for the size of the bird. The eggs, 

 commonly three, some . 68 x -50, are creamy white, the larger 

 half being more or less spotted and specked with reddish- 

 brown. 



Wintering in the tropics, Traill's Flycatcher finds its 

 breeding habitat in the Eastern United States and the 

 British Provinces, reaching the latter during the latter half 



of May. 



COOPER'S HAWK. 



In the top of a tall beech tree, I discover a hawk's nest, 

 and while I am querying whether it be new or old, the 

 female of Cooper's Hawk (Acctpiter cooperi} alights on a 

 limb near the nest, and presently drops into it. At the same 

 time I see a friend passing along the winter road near 



