I.-AN ANNOTATED LIST OF THE BIRDS OF UTAH. 



BY H. W. HENSIIAW. 



The following list is based largely upon material collected daring the 

 field-season of 1872, while with the exploring and surveying party in 

 charge of Lieut. G. M. Wheeler, of the United States Engineers. In it 

 are enumerated all the birds thus far known to have been taken or 

 observed within the limits of the territory. To give it additional value 

 as a formal list, those known to breed, whether from actual observations 

 in the field or from their known breeding-range, are indicated.! Notes 

 are also given respecting their relative abundance or scarcity. Of the 

 214 species given, 160 were either actually taken or noted by Dr. Yar- 

 row and myself during the season. Of the remaining species, 25 not 

 met with by us are contained in Mr. Allen's list of birds, collected in 

 the vicinity of Ogden, from September 1 to October 8. I am also 

 indebted to Mr. Ridgway for a list of the birds noted by him during his 

 collecting trip in this locality, including many not contained in either 

 Mr. Allen's paper or our own report, and also for assistance in the 

 preparation of the list. It may be here stated that no collections have 

 ever been made in Utah during the spring-months, and thus many of 

 the spring-migrants have entirely escaped notice. This will account 

 for the comparatively small number of species mentioned. An entire 

 season's connected observations would doubtless add many to the 

 number. 



TURDID^E (the Thrushes). 



*1. Turdus fuscescens, Steph. Tawny Thrush. 



Summer-resident. Common on Provo Eiver in summer of 18G9. 

 (Ridgway.) 



*2. Turclus swain-soni, Cab. Olive-backed Thrush. 



Very common. Inhabits the thickets of the mountain-streams. 

 (Ridgway.) 



*3. Turdus pallasi. Cab., var. audulonii, Bd. Rocky-Mountain Hermit- 

 Thrush. 



Less common than the preceding. Inhabits the pine-region. (Ridg- 

 way.) Ogden, September. (Allen.) 



*-l. Turdus migratoriiiSj L. Robin. 

 Yery common. Permanent resident. 



* This paper was read April 6, 1874, before the Lyceum of Natural History, New 

 ..York, and printed in Annals of the Lyceum, vol. xi, June, 1874. In its present 

 orm it is substantially the same, with the exception of revisions made to accord with 

 the present state of knowledge upon the subject. 



t An asterisk (*) is prelixed to the names of those known to breed in the Territory. 



