Yellow ring with a black 3-alpha code.
note 1 : all birds are ringed as pulli and have the c-ring on their left tarsus and a metal ring on the right.
Those ringed as post-breeding, fledged birds have the c-ring on the right tarsus and the metal on the left.
note 2 : used combinations are :PAA-PZZ ;
note 3 : used letters are : A, C, E, F, H, J, K, L, N, P, R, S, T, U, V, X, Y, Z.
note 4 : birds ringed (since 2015) as pulli from Dublin Port (Ireland) breeding colony, and as adults in a post-breeding aggregation on the Dublin coast.
note 5 :
