I was crouching over some moss earlier today when suddenly a number of C. pennsylvanicus majors walked by. There were no other workers ahead of them or behind them that might imply a foraging trail, so I thought I might as well follow and see what they were up to. Unfortunately, they soon passed into dense grass which I wasn't able to keep track of them. There were about a dozen majors and one median, all walking in the same direction at a uniform speed and keeping in a 15cm diameter cluster (after five meters or so, this formation began to fall apart). At the time I had discovered them, they were nowhere near their nest and actually coming from a direction which would be devoid of Camponotus nesting sites.