177 



20. Tyrannus Carolinensis. 



21. Empidonax Traillii. 



22. Empidonax minimus. 



*23. Sphyropicus varius. 

 *24. Centurus Carolinus. 

 25. Melanerpes erythrocephalus. 



2G. NisuB Cooperi 

 *27. Griis Americanus. 

 28. Actiturus Bartramius. 



*29. Anas obscura. 

 30. Querquedula disoors. 



Supposed Western Limit. 



W. Na ; breeding ; S. L. Val. ; 

 breeding. EIDQWAT. 



Antelope Island, Salt Lake ; 

 June, 18G9. RIDGWAY. 



Fort Bridger, Wyoming. 

 DREXLER. Col. AIKEN. 



Colorado. AIKEN. 

 Colorado. AIKEN. 

 Salt Lake City; June. 



ElDGWAT. 



Doubtful. 

 Colorado. AIKEN. 



Kamas Prairie, Utah ; July ; 

 breeding. RIDQWAY. 



Colorado. AIKEN. 

 W.Nevada; rare; breeding? 



KlDGWAY. 



II. OTHER EASTERN SPECIES FOUND AT MORE WESTERN POINTS, NOT 

 YET DETECTED IN COLORADO. 



l. Cisto thorns stellaris. 



2. Helminthophaga runcapilla. 



3. Dendroica Blackburnise. 



4. Seiurus Noveboracensis. 



5. Lanivireo solitaria. 



6. Vireosylvia olivacea. 



7? Plectrophanes Lapponicus, 



8. Melospiza palustris. 



9. Passerella iliaca. 



10. Corvus Americanus. 



Utah Lake; breeding. HEN- 

 SHAW. 



California. XANTUS and GRU- 

 BER. Ogden, Utah, Sept. 

 ALLEN. E. HumboldtMts., 

 Na. ; Sept. RIDGWAY. 



Ogden, Utah ; Sept. ALLEN. 



Fort Bridger, Wyoming. 

 DREXLER. 



W. and E. Humboldt Mts., 

 Nevada; Sept. RIDGWAY. 

 S. L. Val. ; Sept. ALLEN. 



Fort Bridger, Wyoming. 

 DREXLER. Salt Lake Val. ; 

 Sept. ALLEN. 



W. Nevada ; winter. RIDGWAY. 



Southern Utah; Oct. HEN- 

 SHAW. 



Saticoy, Cal.; Nov. DR. 

 COOPER. 



W. Nevada; Oct. and Nov. 

 RIDGWAY. 



