REPORT UPON ORNITHOLOGICAL SPECIMENS. 



11 



Myiodioctes pusillus, (Wils.) Green Black-cap Flycatcher. 

 Not uncommon in Middle Utah. 



Sctopliaga ruticilla, (L.) Redstart. 

 Rather common in cottonwood-groves near Provo. 



HIRUNDINIDJE. 



Hit-undo horreorum, Barton. Barn-Swallow. 



Specimens were secured both in Nevada and in Utah at various 

 points, but it was rather uncommon. Does not differ in any respect 

 from the eastern variety. 



Petrochelidon lunifrons, (Say.) Cliff-Swallow. 



Observed in Snake Valley, Nevada, and in many localities in Middle 

 and Southern Utah, living in colonies and building their nests at times 

 in inaccessible places in lofty cliffs, and again in places but a few feet 

 above the plain. 



TacUycmcta Ucolor, (Y.) White-bellied. Swallow. 



Found at Fairfield early in August, and at Provo in same month. 

 1'ather common. 



Cotyle riparia, (L.) Bank-Swallow. 



By no means as numerous as the following species, with which it was 

 found associated on the Provo Iliver. 



Stelgidopteryx serripennis, (And.) Kough wing Swallow. 



Exceedingly abundant on the Provo River, where they roost in large 

 numbers upon the dead bushes along the banks. So numerous are they 

 and so closely do they sit huddled together, that six individuals were 

 secured at a single shot. They were observed on the wing in pursuit of 

 insects, far into the evening, even when so dark that they could with 

 difficulty be distinguished. Also noticed in Western Utah and Eastern 

 Nevada. 



