Orange ring with white two alpha-numeric code separated by a white line (on one leg) and metal ring (on the other leg).
note 1 : birds were ringed in Sweden since 2019.
note 2 : the two letters of the code are separated by a white line (e.g. A|1). Used letters are: A, C, F, H, J, K, L, N, O, P, S, T, U, V, X, Y, Z. Used numbers are: 1, 2, 3, 4, 5, 6, 7, 8, 9.
note 3 : to read the ring, turn your head 90 degree to the left.
note 4 :