I believe that I (we - 2 other birders were present) saw a Hoary Redpoll at the Disvovery Center at 10:50 for about 5 minutes. About 50 Common Redpolls were present when the gal said there is a really white one. We all looked at it and it was obvious without binocs which one she was talking about. It had very little streaking on the sides, minimal, if any, pink on breast (I have a hard time discerning light pink), and all white undertail coverts (got to look at this several times for a few minutes from 50 feet and for about 10 seconds at about 25 feet away on the wire railing on the edge of the feeding area). I asked the other birders if they saw any streaking at all and they too could not see any. It was much lighter than even the pale Common Redpolls (I could see streaking on most of these on the undertail coverts for the ones I was able to observe and streaking on the rump - there were several). I saw the rump for only a flash and it appeared white without streaking, but I did not get a great view, just a flash. The wingbars seemed much bigger and the area around the black bib very light, almost white (I did see this on some of the Commons). The streaking on the sides was fairly minimal so I would believe it was a male, but there was some. Unfortumately, none of us had a camera. This bird was obvious compared to the others. I have only seen 1 Hoary Redpoll in my life and it too was obvious in the mass of Common Redpolls, even pale ones. However, that is why I put the ?? because of my limited experience with redpolls and knowing that even Common Redpolls can be very pale.
Something, a squirrel was most likely, spooked all the Redpolls, and they disappeared in the trees to the west. I had to leave, but informed a few others (e.g. Nick K.) that one might be present.
Thomas Hall
Livermore, CO