We left our birds to free range on Saturday--they usually put themselves to bed every night, but this time we found some of them walking around our property the next morning. We found a set of wings laying on the ground that looked as if they had almost been surgically removed. No other feathers, blood or "parts". Any idea what predator pulls the wings off and takes away the rest of the bird? We assumed that the animal had attacked before dark because so many of my girls were outside their usual ranging area, presumably they scattered to find shelter. We came home after dark, assumed everyone was in for the night and closed the pop door, only to find several of them had spent the night outside. I'd like to know what got one of my girls so we can protect them a little better. Any ideas?