MUSEUM OF COMPARATIVE ZOOLOGY. 135 



SYLVTCOLID^. 



7. Icteria virens. Common on Big Timber Creek. 



Probably Dendrceca cesliva and D. discolor occur sparsely along the Big 

 Timber, but none were observed during a day's hunt along that stream. 



HIRUNDINIDjE. 



8. Hiruudo lunifrons. Common at localities. Large colonies breed 

 on the cliffs bordering the Saline River. 



9. Cotyle serripennis. Not uncommon along the streams, in the banks 

 of which it nests. Nests examined June 7th were not yet completed. 



10. Progne subis. A few pairs were seen in the vicinity of Fort Hays, 

 where they were breeding in boxes erected for their accommodation. 



VIREONIDJE. 



11. Vireo gilvus. Rather common in the timber on the " Reservation " 

 at Fort Hays, and along the Saline and Big Timber. 



12. Vireo Belli. Common along Big Timber, and doubtless more or less 

 frequent along the better timbered portions of the other streams. 



ALAUDID-S1. 



13. Eremophila alpestris. Abundant ; as frequent on the high divides 

 as elsewhere. Very unsuspicious; in this regard its habits contrasting 

 strongly with those of most of the other prairie species, especially Calamo- 

 spiza bicolor and Plectroplmnes ornatus. It was decidedly the most numer- 

 ous species in the vicinity of Fort Hays. Resident, breeding very early, 

 and apparently twice in the season. The first brood was fully fledged in 

 May, and before the end of June the young birds were* already gathering 

 into flocks. June 11th, we found young in the nest half grown, and the fol- 

 lowing day young that, although they had left the nest, were still unable 

 to fly. No nests were found containing eggs, the species being a close 

 sitter, and the nest very difficult to find. 



The plumage of this species was very much bleached, a large proportion 

 of the specimens observed having the throat either distinctly white, as also 

 the superciliary stripes, or with only the faintest trace of yellow, and the 

 other tints were correspondingly pale. 



FRINGILLIDjE. 



14. Chrysomitris sp. ? A Chrysomilris was frequently heard, but all our 

 efforts to procure a specimen were fruitless. It had the restless habits and 

 the notes of C. pinus, but this species is not known to frequent so southern 

 a locality in the breeding season. It is hence more likely to have been 

 C. psaltria. 



15. Plectrophanes ornatus. Common out on the plains almost every- 



