Sorry to ask I did try a search first.
Is it best to leave the entrance block out as I have left mine in both hives with the mouse guard fitted over since last week of October as it is mice heaven where I keep mine , both on OMF with insert left out , but when I went and had a quick look/check yesterday at the (outside) one of the hives had a lot of dead bees at the entrance and had blocked the entrance inside and out but taking in to account its only a small opening and it woudnt take that many to block it .
I have removed the mouse guard , I took the entrance block out , bees came out checking to see what was going on , and used a stick to remove any dead bees which apparently where only at the gap in the entrance block , I then re inserted the entrance block minus the mouse guard .
Any advice ? 1st time using them as never had in the past but another person who had hives same site had a family of mice move in to one of his last January so didnt want to take any chances.
Grub