PASSEEES TYEANNIDAE E. TEAILI VAE. PUSILLUS. 



557 



so in Eastern Nevada. Very quick and nervous in its movements, con- 

 stantly crossing and recrossing the river and catching insects. The single 

 "whit", which is often repeated, is strongly suggestive of the note of the 

 Least Flycatcher (E. minimus}, while the song may be compared as 

 approaching somewhat to that of the eastern Phoebe (Sayornis fuscus). A 

 nest found July 27, in a small willow, three feet from the ground, was a rather 

 loose structure, composed of grasses, with a lining of a few hairs This 

 contained newly hatched young. Eggs white, sprinkled with reddish-brown. 

 A comparison of the large series taken shows considerable variation in size, 

 especially as regards the bills. 



Colorado, New Mexico, and Arizona are all included in the range of 

 this flycatcher ; its abundance being dependent upon the presence or absence 

 .of its favorite grounds. 



Wherever willows are found growing in small clumps or fringing the 

 streams, this flycatcher is almost certain to be found common, and it is 

 rarely seen in the summer in other situations. Its habits and notes appear 

 to be identical with those of its eastern analogue, from which it differs 

 mainly in its paler coloration. The nest is placed in the upright fork of a 

 bush or sapling a few feet from the ground, and is composed of grasses 

 and fibrous material, rather loosely woven together, and lined with fine 

 grasses. Its general appearance is much like that of the nest of the Yellow 

 Warbler, D. tzstiva, but it is not nearly so compact nor artistic. 



