Gulls

Combination of two rings [(black ring with a 2 alpha-numeric code) and white ring with letter “A”) and a metal ring.

note 1: used colours are black (below) and white (above). Reading upwards.

note 2: flying birds carry a black ring with 2 alphanumeric code and a white ring with the letter A on right tarsus. Metal ring is on the left tibia.

note 3: pulli carry a black ring with 2 alphanumeric code and a white ring with the letter A on left tarsus. Metal ring is on the right tibia.

note 4 : letters not used : B, D, G, I, O, Q.

note 5 :