Full-color guide to 259 bird species. Colorado Birding Tips and Field Notes sections. THE book for Colorado birdwatching by a well-known Colorado wildlife writer and birder
Excellent resource for this part of Colorado. So far, since purchasing this book in 1988, we've identified 80+ bird species.
One note: as of today (3/9/25), the binding is getting brittle and I don't feel we can use this as a field book any longer. This edition is from Westcliffe Publishers.