You know it's just a decision you have to make. Do I want happy birds that enjoy their life, even though they are at risk of a predator....or do I want safe, but not as happy birds?
This was our dilemma as well, but after much deliberation, we decided that a happy bird was more important to us. They are our pets as well as egg producers and we take very good care of them. Yes, we do lose 2-3 every year to predators while free-ranging and it's heartbreaking.
There are certain times of the year that we don't let them out as long because the predators seem to be on the prowl more. Generally this is during the winter and the days are shorter anyway. Jan-Mar is bad for hawks where we are. I'm considering using camo saddles on all the hens next year. Crazy K makes a saddle with "predator eyes" stitched on the top. Don't know if it works to fend off the hawks, but it's worth a try!