I have one 10 frame hive with two deeps I started last year in march 2013. Appears to be doing fine so far. The weather finally warmed up to the low 60's today and sunny. The previous two days have been in the 40's. This month has been very cold here in nw tenn. I have a candy board on the hive and pulled it today cause only about a 1/4 of it was left lying on the top bars. There was no candy left on the board and it was left next to the hive a couple hours but no bees were on it. Anyway I was watching the bees a few hours and noticed some were returning with a white to very light grey material on their pollen baskets. What could that be this time of year? I live out in the country with a lot of farmland and woods around me. Also live a few miles from the mighty miss. river and a very large lake two miles away. What would be putting out pollen now? Robbing another hive? It has been so nice watching them do their orientating and cleansing flights too. Were due for some 40's days and below freezing nights in a few days too.