78 



AVIFAUNA COLUMBIANA. 



The nest, however, is not easily discovered, being a mossy saucer-like 

 structure saddled so closely on the bough as to appear like a natural 



ifl£ A 







'*r&&- 



WviJIijj/li^i 

 "Fig. 58. — "Wood Pewee. 



excrescence. The eggs are three or four in number, creamy 

 speckled with reddish. 



white, 



[382] 



125. (39.) Empidonax acadicus (dm.) Bd. Acadian Flycatcher. 



A common summer resident; the most abundant of the Empidonaces, 

 and the only one known to breed here. It arrives the last week in April, 

 and leaves about September 25. The eggs closely resemble those of the 

 Pewee, but the nest is placed partly pendant in a forked twig. [384] 



120. (40.) Empidonax trailli (And.) Bd. Traill's Flycatcher. 



Rare; during the breeding season at any rate it is seldom if ever ob- 

 served, and we do not think we satisfactorily identified it under those 

 circumstances. It is, however, not so uncommon as our remarks in the 

 original edition would indicate, as we did not sufficiently discriminate 

 between it and some of its congeners. It is found in woodland, and its 

 times of arrival and departure are probably the same as those of the 

 next species. [385] 



127. (41.) Empidonax minimus J Id. Least Flycatcher. 



Spring and autumn migrant; does not breed here; rather common, 

 most so during the vernal migration. It arrives the last week in April, 

 and is seen for about two weeks ; returns the third week in August, 

 and remains until the third week in September. It is not a woodland 

 bird, frequenting exclusively the margins of small streams, briar- 

 patches, hedge-rows, and similar resorts. [387] 



128. (42.) Empidonax flaviventris Bd. Yellow-bellied Flycatcher. 

 Spring and autumn migrant, rather rare. Having taken it July 28, 



we were led to suppose it might breed here, and so expressed ourselves 

 in the original edition. But, with larger experience with this difficult 



