White dove

Hello I’m new here can anyone help me please,I have a white dove that has been attacked behind its head,this was yesterday so I’ve placed it in my shed with water and food,but today I’ve left the shed door open but it won’t come out,it has been fed and flying around the large shed,do I report it to rspcb or just let nature take its cause,maybe it’s to early for it to go,or to scared to fly out,hope I can get some answers on here thx you