Born-Digital or AnalogAnalogTranscript"Colorado Mocking-Bird" Burro often called "Rocky Mountain Canary" and "Colorado Mocking Bird," for its raucous bray.. Colo. Guide to the Highest State p.406 Burro often called "Colorado Nightingale". Min. Ind. and Tradesman v.10 #22 Play 10, 1892 p.219CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng