What are the most likely daytime predators that could be getting my birds? I've lost a few hens recently but what really hurt was losing my rooster yesterday. I doubt it was a predator bird as he was a big rooster. No sign of feathers or anything left behind but we have 112 acres and our birds free-range so its very possible we just haven't found the leavings. We live in south-central Virginia in a very rural area.
Hens go broody when you don’t want them to… and won’t go broody when you do. 
Not sure of the sound quality. I'd like to hear of anyone try it with any success. 
