Arctic Tern

Dark-green ring with a 3 x 3 matrix of white dots, and one orientation dot.

note 1 : this serves a similar function to a QR code but much simpler, and is partly a trial scheme.

note 2 : the minimum number of dots would be 1 (the orientation) and maximum 10. All except 2 rings would be between these and this would give me 512.

note 3 :t he rationale is that all sightings of my previous colour rings have been from the ringing site (and mainly by me) and rings would be used on fledglings, and a camera used for subsequent sightings when they return the following years (philopatry in this site is, or at least was, around 75%).

note 4 :  

Green ring with a white 3 numeric code (on left tarsus) and metal ring (on right tarsus).

note 1 : birds ringed on Farne Islands, Northumberland, UK.

White ring with a black three alpha-numeric code, starting letter A, B, C, D, E followed by two numbers (on left tarsus).

note 1 :

Dark-blue flag with a white three-numeric code (001-500).

note 1 : project relates to a number of Irish Arctic Tern colonies, with a main focus on the east coast including Dublin Port, Dalkey Island, Rockabill Island and others.

note 2 :

Black flag with a white three alpha-numeric code, starting letter "J".

note 1 :

White flag with a black two alpha-numeric code.

note 1 : project started in 2023.

note 2 :

Red ring with a white two numeric code (on one leg) and metal ring ( on the other leg).

note 1 : in case of doubt, mail to Petra Manche : petra.manche@outlook.com.

note 2 :

Green ring with a white 2 numeric code (on left tarsus) and metal ring (on right tarsus).

note 1 : birds ringed on Farne Islands, Northumberland, UK.

note 2 :

Yellow ring with a black two alpha-numeric code.

note 1 : used codes, as starting letter Q (with a vertical line after between the two characters) or S and a second code A, C, E, F, H, J, K, L, N, P, R, S, T, V, X, Z.

note 2 :  

Yellow ring with a black two alpha-numeric code.

note 1 : used codes : as starting number 4, 5, 6, 7, 8, 9 and as second letter A, C, E, F, H, J, K, L, N, P, R, S, T, V, X, Z.

note 2 :