We've had some for a couple of days. One nest was under the paving in the cold frame by a raspberry cage. The winged ants were emerging and couldn't get out. Whilst I was picking rasps and slightly camouflaged a young robin was trying g to peck at the winged ones through the glass. Just for robin I opened the coldframe and he had a lovely feast with me watching on.
Gardening is an excuse not to do housework
Greetings from Salisbury
Qualified member of the Confused Nutter's Club