My back yard was home to Bay City Glass from the 40's to the 90's. The building is gone now, but the detritus of 50 years of glass sales and installation litter my back yard. I've got as much of it up as I can but we are still constantly finding bits of auto glass all over. Regular glass isn't as frequent, but it's still there too. We sweep it up whenever we find any. Would it be terribly dangerous to my chickens to free range them? I wasn't planning on it originally, but then I caught the chicken math bug. My run and coop is going to house 4-5 chickens, and I've got extras. (I bought extra in anticipation of death and roosters, but I've only got two roos and the pullets are all happy and healthy. go fig) I don't want to get rid of them if I don't have to, but I also don't want to shred my chickens innards!