I recently moved to Denver, to the Park Hill neighborhood about a mile east of the science museum. I continue to be impressed and surprised by the variety of montane species occurring here, made possible certainly by the numerous mature tall conifers and many other tall trees. In addition to Red-breasted Nuthatches (in my backyard), Evening Grosbeak, Townsend's Solitaires, and Hairy Woodpecker in the past couple weeks, a couple days ago I heard the distinctive calls of a Type 2 Red Crossbill.
Have fun birding,
Eric
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Eric DeFonso
Denver, CO