It's a serious problem. I watched a pair of peregrines going over the top of me yesterday afternoon, they were certainly focused on something. I went up to the back of the garden to get a better view of what they were after. Sure enough a team of 25 - 30 pigeons were circling their loft. Within seconds the team were scattered over the sky. Didn't see anything being taken ?? My birds are just paired up so none have been out since last September, dreading the thought of starting to exercise them