@4mozasmiles; trying to get BIF's off the feeder is tough even with the 1D's AF system. From the point the camera starts to track the bird takes a pretty big leap. I think you can increase your odds by adjusting your set up. You need some perchs close to the feeders for the birds to come in and roost on. I use old posts, branches or dead trees, then I set them up at a location close to the feeder and position them to the blind to get the angles and light I want. The more places the birds have to stop and sit the more it will slow them down and give you more oppritunity.