Hey my name is Karen, I got my first 3 chicks about 3 to 4 months ago from a friend. I don’t know what they are as of yet and my friend was no help at telling me. All I know is two turned out to be roosters and one a hen; which unfortunately i willl have to rehome my rooster being I live in a small residentially area and no roosters are aloud . So I order another 5 chicks from my pet chicken, by the way a really great place all my chicks were health and strong. My problem start like four days after receiving my chicks, I raised my other three in my green house in the small cage I made and never had anything happen to them . I had checked on my new chicks like five times during the day each day , but I went to check on them one morning and right off the back I knew something was wrong. The little box just didn’t seem full and I went to counting them and one was missing. No blood, no feathers just gone. My husband seem to think it was a chicken snake, but we have seen rats around, being our neighbor does nothing to the back of his fence line. I stayed in the green house reinforcing every little square inch of it, I even took the 4x4x4 space and made my chicks a little penthouse Off the floor and double up on the chicken wire and added a plastic mash between it and boarded up the side and drilled some small holes throughout. I even stayed out there all night waiting for that thing to return; because I was going to kill it, but it never came back. Is there any other suggestions to help keep my chicks safe from what ever it my be, I even thought about bringing in my white rooster into the green house being the babies were in a cage that he couldn’t get to them. Please any advice I need to be able to sleep at night again, worry chicken mom 
Glad you joined.
You've been given some great advice, hardware cloth will definitely fix the issue. Good luck with your flock and welcome aboard!
