I kinda meant like a roof over it so you didn't have to manually do anything other than fill it.
That's a good idea and that may happen in the future. I'll wait and see how much deer activity I get at the feed station over the coming weeks before I decide to modify that trough any further. Deer are slowly but surely getting used to the troughs and the corn one has been out just over a week. So far so good though. Thanks for the recommendation!