One of my Delaware pullets is limping. She's eating, drinking and not acting sick at all besides holding the foot up and showing a slight limp when she walks or runs. I examined the leg & foot and there was a very slight reddish tinge on the pad but no sign of an entry wound or foreign object. She doesn't object to me poking around the pad (looking for a splinter or other foreign body) and was actually walking a little better after I fiddled with it. I searched for threads on bumblefoot and there is no scabbing. This just started last night. Could she have bruised the foot? What should I watch for (besides worsening limp) if she isn't back to 100% tomorrow?