I have (had) three silver-laced Wyandottes, about 6 weeks old now, that I was introducing to my flock. Flock is one EE roo, with 10 various hens. I've introduced before with little or no trouble: last year introduced three RIR by putting them in a dog crate inside the coop for a week and then releasing. A little dicey at first, but no real problems. Back to the Wyandottes: I put them in the crate in the coop for a week. Released them last Saturday. Everyone was acting great...seemed to be the easiest release I'd ever done. Then, day before yesterday, hubbie says "girls aren't coming out of coop into the run...what gives?" Search me. I checked on everyone and they were all fine, just inside coop. Last evening, was working in the yard til dusk, went to check on everyone before shutting the doors for the night, and found one of my babies out in the run, injured. All others inside the coop. Don't know who did it (assume the roo) but I pulled her out of there and put her in the cage in garage. She died while I closed up for the night. I am sick about it. Other two young ones are hiding (?) beneath the ladder in the coop. This morning they were all up and about, things looked OK again. What's going on? I can't sit and watch them all day...I have a job. Any advice as to what's happening?: