Two Bald Eagles in my back yard this afternoon, flying low, below tree tops, hung out in the grove behind the house for about 2 hours. Did not make a pass at the chickens, but thanks to this thread as I suspected, they might. I don't have a covered run, but will keep them behind the electro net for a few days. they are big birds so hopefully they are not agile enought to get one of my birds, who are pretty alert when it comes to raptors, but far from perfect. I hope they don't build a nest!!! They were on the ground in the grove, but I did not see them fly off with any limbs.