Chaffinch (Fringillidea)

Chaffinch (Fringillidea)

Observation - Chaffinch (Fringillidea). Description: It might be F.coelebs, but im not sure. What is wrong with its leg. Looks like a plaster cast. Is something wrong? what should I do?

It might be F.coelebs, but im not sure. What is wrong with its leg. Looks like a plaster cast. Is something wrong? what should I do?