One reason these birds are being found so far south is that they are forced to relocate in search of food when winter sets in their northern habitats.
When I first arrived at the location, I spotted three Redpolls right away in the birches. I got my camera set up and within 2 shots they all flew off to the edge of the river out of sight. I attempted to sneak down towards the river, only to have them fly away again. At this point I decided to try later. As I returned back to my truck, I noticed they were all perched in the same trees that they started in.