I would keep any newly purchased birds in 30 day quarantine, to be on the safe side......
Well, hopefully, it isn't, but it could be bumblefoot, which is usually caused by a bacteria. It is infectious, so affected birds should be isolated. With bumblefoot, the foot or foot pad gets infected, gets swollen and red, and may feel hot to the touch within a matter of days.
Bumblefoot is preventable by making sure that all roosting areas are free from sharp objects (nails, screws, jagged edges, splinters). Also make sure that the roosts are not too high, as jumping down from too high a spot can injure the foot pad. Make sure there is enough litter on the floor to help cushion the birds when jumping down from the roosts.
Wearing disposable latex gloves, check your bird's feet. If the foot pads are swollen, but still soft, you can try soaking them in Epsom salts. Use the directions on the package for human feet soaking. The salts will flush toxins, reduce inflammation and relieve the pain without drying the skin. If you do not have Epsom salts, you can use hydrogen peroxide, but make sure you rinse the feet really well, because it will dry out your bird's skin.
If there is a scab on the bottom of the foot pads, you can lightly scrub it with antibacterial soap, then rinse and thoroughly dry the foot. Apply calendula or neosporin ointment. Bandage with a gauze pad and vetrap, wrapping the foot so that the toes are still free. Don't wrap tightly, or you'll cut off the blood circulation to the foot. Keep the foot clean and check 2 or 3 times a day. Change the bandage daily, applying more ointment when you do.
Keep the bird in an area where it cannot roost or jump down. Provide vitamin/electrolytes in the water and feed a small amount of yogurt w/active cultures daily for about a week.
Disinfect the roosts in your hen house and change the litter. After the foot is completely healed, it can go back to the hen house.
Good luck!
