I was wandering in Newton wood near Exeter yesterday and came across a number nests ants (about 1cm long, redish black colour), they were in the open and made a mass about maybe 4-6 ants thick and about 30-60cm in diameter. Anyone know what they were doing ? They had not been disturbed as they were not moving very fast. The only time I've seen something like that was in Africa just before it rains, flying ants all take off at roughly the same time and the soldier ants are there to protect them, the worker ants to attend the flying ants: so you get a mass of ants around the entrance of the nest.
Greg
Greg