Once they come to the hives or someone has a 100% confirmed observation,first try to see the direction they fly away to.Then follow that trace and good 300 to 500 m further hang up lurepots,then go observe those to have a new vieuw on their direction,and so on,in the end triangulation and if needed gather some guys to go spot the treetops.Don't know if you know the wholy story.They start of as a embryonic nest,just the q and few eggs and larvae,the size of a tennisball,that grows into a primairy nest,about the size of a football.These are mostly situated somewhere dry ,a woodshed,roof overhang,chicken coop...,mostly easy to find and often reported by owners.Round and about end july they move house to somewhere high up in a tree,the secundairy nest,that's the nastiest moment,this moving goes partwise,first build,then the queen moves,later on the later hatched ones that still getting born in the primairy come join.So you might pretty well destroy a still active primairy but the queen is gone allready to the secundairy.Think that's what got us here with the second nest we found .The nest in the treetops are hard to see they can be real high up,brownish beige so well camouflaged and with all the leaves still on ,pffff,not easy,and still they can grow real big real real big ,the size of a wheelbarrow.
