I have a swarm of my bees lodged on the trunk of a tree almost at ground level and they have been there 48 hours now. With previous swarms I have usually managed to get them into boxes and recover the bees by shaking them to the ground or cutting a branch but that is not possible this time. I have a scented box nearby and a handful have taken up residence but not the bulk. Shoud I try brushing them to the ground to see if they will walk into the box?