We had snow on Christmas eve and it stuck around today. I thought this was pretty unusual and then this morning I saw a news story about it, this is supposed to be our third White Christmas in the last 100 years. The bird bath was icy until afternoon so the chickadees, sparrows and juncos were squawking until it softened up. The hummingbird feeder didn’t freeze at all so I still had customers there. The sheltered spot on the porch and amount of sugar in the mix must combine to keep it from freezing.