I was reading about bumble foot here and decided to check my hens. It looks like 2 of my hens have scabs on both feet and 2 have it on 1. We have a large tree in the back yard, have lots of tree roots, rocks, bark, etc....so LOTS of things that can scratch their little feet. 1 chicken I saw a scratch on her pad. None seem to have swollen feet and I am wondering, how you can really tell it's bumble feet vs. just a scab from scratching and wear on their feet??? Will their scratches ALWAYS turn into bumble foot??? Thanks for any advice and thanks for the pages on how to fix it!!!