Unfortunately I found this lying on the grass this morning:
I don't think that the cats would have done this. I haven't seen any cats in the garden since the nest appeared as it's close to where they come in and out. Looking online I have discovered that badgers enjoy a bit on honey and sometimes foxes. I don't think that there are many foxes around here and badgers? I've never heard talk of them. I'll have to grab a passing farmer and ask them if there are badgers locally.
The gate into the garden is locked at night so I don't think a human would have done this. Good news is that the bees are still going to and fro so there is some of the hidden nest left.