One of my hives really favors the upper entrance through the notch in the inner cove,r none of the other hives use there's so much . It's a split I did about a month ago , its the half that I moved out of the parent hive along with the queen . I was checking them today and they had a mild traffic jam at the little top entrance and the bottom wide open but only a few using it . I was curious if maybe something moved into the bottom and was blocking them , maybe a snake or mouse , so I yanked the top super off and in doing so a frame from below came up with it and popped out and laid on top of the frames , I picked it up quick to take a look and there was the queen looking back at me , so I tucked her and the frame back in and pushed the bottom super sideways to take a look at the bottom board and all was clear no snakes nothing blocking them from using the normal bottom entrance , anyone see this before.