Share 'Tri-colored blackbirds?'

I am happy to be a new member at this site! I found you while searching the internet to see if anyone else had reported seeing these blackbirds in Colorado. After looking at all my bird books I am wanting to believe that I saw a flock of Tri-coloreds in a tree on Left Hand Creek in Longmont two days ago, March 5, 2009. My books all say that their range is the California coast, so I offer this ...