One method of locating a colony of wild bees is called bee lining. In this video, we will join Prof. Tom Seeley as he tries to locate a wild colony of bees. He catches bees foraging on goldenrod and aster, feeds them concentrated sugar solution and determines the direction that they fly as they return to their colony. By painting identifying marks on some bees, he is able to measure their round trip time to get an estimate of the distance to the colony. With direction and distance established, he moves closer. Then, watching the bees, sees that they are living in a dead tree.