I lost another hen last night/ yesterday evening. I live in the high desert. We have owls, coyotes, and hawks. I am not losing the chickens at a steady rate, they just seem to disappear randomly. I lost 2 within a day of each other, then lost one a few months later and now 3 months after that I just lost another. I was thinking most predators will come back to an easy food source pretty regularly not randomly. I have a 110lb pit bull who roams the yard and absolutely HATES coyotes. If there is one around you will know. I have five acres fully fenced in 6 foot chain link and I love my hens to be able to "free range" the yard. But now, since I am down to 3 hens and one rooster I am considering just keeping them in the coop 24/7. I just can't figure out what is getting them. It is pretty low scrub every where around here and we have Joshua trees. You can spot a hawk on the a mile away, same thing with the owls if they are out early evening. I am also not finding any kill spots in the yard or in the surrounding fields. Chicken are in the coop at dusk and that is when we always notice that somebody is missing. Any thoughts?