I suggest with punctured bird you begin a regimen with an antibiotic. Such internalized wounds are prone infection especially when foreign material such as feathers are actually inside bird. You will not be able to see them is it is the case. Treatment needs to start before bird looses interest in drinking. Also keep in a dry location that neither hot nor cold (lower 60's to middle 70's best). If fever develops, then make so bird has access to a heat source like a heat lamp or even a heat rock like used for lizards. Make bird can get away from if it needs to. Also spice up diet with a little more variation as provided by raw greens and quality animal protein. The yogurt silliness may also prove very effective in promoting feed intake and help with restoration of gut flora after antibiotic regimen ceases.