Pine should be fine. I saw the chicken whisperer . He talked about checking there feet once a week. No bumps is a good thing. He did talk about the weight of the bird jumping to and from the purch . That it's a lot of force that the roost should be sanded to have less risk of injury. Maybe she jumped wrong and sprained her foot ankle . If it was me and I couldn't find any injury just pain I would soak in Epsom salt for a short time tonight in warm water. When I put her in the coop I would not let her jump. Or isolate so she can heal. Soak again in morning see if it seems better if not look closer and ask kuntrygirl ,forever, or Jeff .keep us informed. Pam
Thanks. She doesn't roost yet (only a couple days old) but I'll keep that in mind. Thanks