Sundogs, the daytime Auroras

[Silverhour]

Having seen a few these past frosty days, it occured to me that sundogs would fit into The Long Dark quite nicely. They would only appear on clear, deeply cold days, and create the same effect that the auroras do. They wouldn't affect wildlife the same way, but would make them more passive instead. Wolves and bears would be less aggressive, and deer and rabbits would have a closer flee range. The trade off, of course, would be that when this happens the temp drops to -45.