Purple finches are large and chunky forest birds with sturdy conical beaks. They are really not purple, but a rose colored finch. They are found throughout much of Canada, the eastern United States, and the coastal western United States. They live in mixed forest areas, along wooded streams.
NOTES-IN-NATURE.ORG 
I think Purple Finches are found in Colorado, but I have no idea how to tell them from the more common House Finch. Any suggestions?
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I saw this Purple Finch in Minnesota. Look at these pics for a difference…
https://notes-in-nature.org/2018/02/01/finches/
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