INTRODUCTION Ixix 



Troylodi/tes aedon parkmanii : Parkman Wren. — Breeds rather commonly. 

 Olbiorchilus hitmalispacijicus : Western Winter Wren. — Kather common 



resident. 

 Cistothorus palustris paludicola : Tule Wren. — Rare in fall. 

 Certhia familiaris montana : Rocky Mountain Creeper. — Abundant in 



winter. 

 Sitta carolinensis aculeata : Slender-billed Nuthatch. — Breeds rather 



sparingly. 

 Sitta canadensis : Red-breasted Nuthatch. — Common winter resident, 



breeding- less plentifully near the fort. 

 Sitta pygmaui : Pygmy Nuthatch. — Most abundant resident. 

 Parus atricapillus : Chickadee. — A common resident. 

 Parus ganibeli: Mountain Chickadee. — Abundant resident. 

 Parus rufescens : Chestnut-backed Chickadee. — Resident. 

 Begulus satrajm olivaceus : Western Golden-crowned Kinglet. — Resident. 

 Regulus calendula : Ruby-crowned Kinglet. — Summer resident. 

 Myadestfs townsendii : Solitaire. — Not uncommon migrant, one pair found 



breeding. 

 Hylocichla fuscescens salicicola : Willow Thrush. — Rather common sum- 

 mer resident among cottonwoods. 

 Hylocichla ustulata ahnce : Alma Thrush. — Breeds rather commonly about 



the lake and on mountain. 

 Merula migratoria propinqua : Western Robin. — Abundant summer resident. 

 Ixoreus mecius : Varied Thru.sh. — Migrant. 

 Sialia mexicana bairdi : Chestnut-backed Bluebird. — Abundant summer 



resident. * 



Sialia arctica : Mountain Bluebird. — Summer resident. 



LIST OF BIRDS OF CHEYENNE AND VICINITY. 



By Frank Bond. 



ClieyeuiiG is located iu the midst of tlie Great Plains region, a 

 little over 6000 feet above the ocean, with an annual rainfall of 

 thirteen inches. The plains around Cheyenne are drained by streams 

 fringed by cottonwoods and willows which attract the migrants. 

 One of these streams flows through the city, which by persistent 

 arboriculture has been made an immense grove of trees, an oasis in 

 the desert. Five small lakes, from within the city limits to a mile 

 and a half beyond, offer resting places to waterfowl of all descrip- 

 tions. The mountain range twent}^ miles west of the city, acting 

 as a barrier to flight, completes the coiulitions which give Cheyenne 

 a i)eculiur and di versified avifauna. The list covers a radius of about 

 thri'C nnlcs from the city limits 



yTjchmojj/iorus oii-id< nta/is : Western (irebe. — Rare >'isitant. 



Colymbus liolltnllii : IIollxi'U (Treb*'. — Hare visitant. 



Colymbus nigricollis californicHs : Eared Grebe. — Common during migra- 

 tions. 



Garia imbf-r : Loon. — Not common but tolerably regular visitor during 

 migrations. 



