Hunted a few times during the cold snap last week. From past experience I scouted mid-day, early afternoon to see where the birds were feeding. It seems they move towards the warmest time of the day for the most part. Headed out between 10 and 11am and had our birds by 2pm. I was hunting grass fields planted over from harvested corn from last sept..
If ground is frozen, remember a cordless drill if you have stake based field decoys or for silos. A larger bit to break ground for the robo stake.