They appeared around a hole in the stonework of the house 3 days ago and we have never noticed them before.
The hole is about 6feet above floor level.
There are usually about 20-30 buzzing in and out at any one time during the day and they all disappear early evening. I'm not sure what time they "get up" but they're not visible before 8am even though it's broad daylight.
The wall is a double skin stone wall, approx 250 years old, with cavity in some places and rubble filled in other places.
Three bees have turned up inside the house so far, two were found dead on the windowsill.
We really need an ID please so we know how to deal with them (if at all). We certainly don't want to kill them if they're honey bees but appreciate that could cause us other major problems. The hive is not accessible without knocking down a wall!
These are Honeybees and it sounds like you may have a feral hive established. I would advise that you approach your local bee keepers society/group as they are used to dealing with swarmed bees etc. and are usually very keen to help and advise. They should be locatable through yellow pages, internet search etc.