Hey everyone! I need some advice. We've got 20 chickens, 6 adults and the rest youngins... Well, I recently noticed a lame hen hobbling around the farm, upon inspection I noticed she has the dreaded bumble foot!! Surgery was performed last night and she is already improving. Swelling has reduced to a minimum and she happily eating and drinking again.. Unfortunately I've now noticed that EVERY single adult chicken of ours has the black scab and or swelling on their feet/toes. Thankfully no one else is lame but WHAT is causing this?! They're free range during the day and cooped at night. My only thought was possibly all of the rain?? Maybe they're spending too much time in the mud? Any advice on putting an end to this would be wonderful! Thank you in advance!