I free range my 25 chickens on 7 acres and check feet once a week, I always catch it early but there is almost always a hen with a small black scab on her foot. Is there anyway to prevent bumble foot when they're free ranging? I've only had one hens foot ever swell and it was small enough she was back to normal the next day after removing the core. That being said removing the core is all I've really been doing is that ok in the less serious cases? The scabs are usually found the size of a salt grain or maybe a pepper grain if it's bad enough