Here in New Jersey landing on the house or in a tree is a guarantee that you will be eaten if you are a pigeon. Once a Cooper's hawk locates your loft, it will not leave as long as you provide a pigeon buffet. Sumatra503 may be able to outbreed the hawk population because his pigeons cycle more frequently than the average bird, and he is able to raise more young birds. When I was attempting to develop a competition kit of Birmingham rollers, I used to raise 80 or more young birds a year. My birds were only flown while supervised, they were whistle trained and would return to the loft when called. With all of these precautions I still lost upto 60% of the young birds that I raised each year. Homer fliers who raise a stronger flying more elusive bird have serious problems with hawk losses. I don't understand how anyone who actually flies their pigeons can say that free lofting does not result in the loss of significant numbers of pigeons?