iSSj.J Drew on the Vertical Range of Birds in Colorado. 1 cj 



Upper Limit of range in — Breeds— 



Hylocichla fuscescens salicicola 

 Hylociclila us tu lata swainsoni 

 Hylocichla unalashkas auduboni 

 Merula inigratoria propinqua 



Oreoscoptes montanus 



Mimus polyglottus 



Galeoscoptes carolinensis 



Harporhynchus rufus 



H. cinereus bendirei {Breivst.) 



Cinclus mexicanus 



"Saxicola cenanthe" (Minot) 



Sialia sialis 



Sialia mexicana 



Sialia arctica 



Myiadestes townsendi 



Polioptila cserulea 



Regulus calendula 



Regains satrapa 



Lophophanes inornatus griseus 



Parus niontanus 



Parus atricapillus septentrional is 



Psaltriparus plumbeus. 



Sitta carolinensis aculeata 



Sitta canadensis 



Sitta pygmaea 



Certhia familiaris rata montana 



Salpinctes obsoletus 



Catherpes mexicanus conspersus 



Troglodytes aedon parkmani 



Anorthura trog. hyemalis (Ridgzv.) 



Telmatodytes palustris paludicola 



Anthus ludovicianus 



Mniotilta varia 



Helminthophaga Virginia' 



Helminthophaga ruficapilla (Ridgw. 



HelmintKophaga celata 



Helminthophaga peregrin a 



Parula americana 



Dendrceca oestiva 



Dendrceca coronata 



Dendrceca auduboni 



Dendrceca maculosa 



Dendrceca caerulea 



Dendrceca striata 



Dendrceca graciae 



Dendrceca nigrescens 



Dendrceca townsendi 



Siurus auricapillus 



Siurus navrius 



Geothlypis niacgillivrayi 



Geothlypis trichas 



Icteria virens longicauda 



Wilsonia pusilla 



Setophaga ruticilla 



Vireosylvia gilva swainsoni 



Lanivireo solitarius plumbeus 



Lanius borealis 



Lanius ludovicianus excubitoroides 



Ampelis garrulus 



Ampelis cedrorum 



Petrochelidon lunifrons 



Hirundo erythrogaster 



Tachycineta bicolor 



Tachycineta thalassina 



Cotile riparia 



Stelgidopteryx serripennis 



Progne subis 



Pyranga ludoviciana 



Pyranga jestiva cooped 



Hesperiphona vespertina 



Pinicola enucleator 



* Plains. 



