This is a cooks personal preference on how they want their turkey. Some cover the whole thing the full baking time, some cover it at the end, some don't cover it at all. We do not cover our turkey when we are roasting it. We do this to baste and to achieve the color that we want, which is a nice and golden skin. The only time we will cover or tent our turkey is if it is browning too quickly and then also after the turkey is done and is resting.