Lift the bird up against your chest, with the feet pointing away. Then wrap it firmly. Place the bird in a box, about twice the size of the bird. The bird should be kept warm, but be careful to avoid overheating. Especially during hot weather.
Half fill the box with torn strips of newspaper.
It will act as insulation and padding. It will also help support damaged legs or wings. Put the bird in the box and close it securely. Darkness will help keep the bird quiet. Date, time and location where the bird was found.