I have always noticed (from day one) that my bees always tend to enter the hive at the right hand side. Not all but at least 80% make a bee line (literally) for the right hand corner.
Consequently my bottom slide board has pollen stained corners in diagonal corners one side and on the opposite two corners on the other side. Indicating the bees use the right hand corner to enter the hive.
I am wondering whether this is the same in the Northern Hemisphere or do they like the left hand side.
Skipping over the Coriolis effect and bathwater, I figure that because bees use so many navigational systems including taking into consideration the rotation of the earth…maybe entering the hive is not random.