Hi GlowyEyes11
I would weigh them fairly soon – they might already be over the minimum 450g needed to survive hibernation and then you can let them go and continue to offer food and enjoy their visits until and if they decide to hibernate. It really depends a bit where you are, but it seems quite mild in general at the moment, so if they are turning up regularly for food and are only a bit under the weight I would be inclined to let them stay – they do tend to put on weight incredibly quickly.
But you might want to check with a local hog carer/rehabilitator – they will know your local conditions better. You can get contact details by ringing 01584 890801.
