Mute Swan

Red ring with a white four alpha-numeric code, starting letter "A" folowed by three numbers.

note 1 : used codes are :  A001, A002 etc.

note 2 :

Lime-green ring with a white three alphanumeric code.

note 1 : all these birds were ringed in Leicestershire. 

note 2 :

White ring with a black three alpha code.

note 1 : all these birds were ringed at Abbotsbury.

White ring with a black four alpha code, starting letter "A".

note 1 : birds ringed by the North Wales Ringing Group.

note 2 :

Dark-green ring with a white four alpha-numeric code, starting letter "C".

note 1 : used codes : letter "C" / letter / letter / number.

note 2 : sequences are C001 to C999 incl. CAA0 to CAA9 etc ... down the alphabet, excluding the letters : E, G, I, K, M, Q, R, O, U , Z.

note 3 : birds ringed by the Cheshire Swan Study Group.

Orange ring with a black four alpha code, with the first two letters AB.

note 1 : birds ringed from 2020 onwards in Somerset, but recently also in Dorset and Devon.

note 2 : used codes ABAA, B, C, D, E, F, G, H, J, K, L, N, P, R, S, T, U, V, X, Z.
ABBK, P, T, U, V, Z.
ABC – Full 20 series (as ABA* above)
ABD – “
ABE – “
ABF – “
ABG – “
ABH – “
ABJ – “
ABK – “

note 3 :

Blue ring with a white four alpha-numeric code : number and three letters.

note 1 : birds are ringed in North-West England, in the counties Cumbria, Lancashire, Merseyside, Greater Manchester and the Isle of Man.

note 2 : used codes are : 4AAA - 4ZZZ, ...

note 3 :

White legring with a black four alpha-numeric code (letter/number/number/number) and metal ring (on the other leg).

note 1 : used codes are :  Y000-Y999

note 2 : birds are ringed in Utrecht, The Netherlands

note 3: this study looks into the survival and behaviour of mute swans in a mixed population with both "real wild" bird and birds that used to belong to "zwanendrifters" that can't fly.

note 4 :

Yellow ring with a black four-alpha numeric code.

note 1 : used codes are : 0TA0 - 9TA9.

note 2 : birds ringed in  East Schleswig-Holstein.

note 3 :

Dark-blue ring with a white three alpha-numeric code, with number "7" anywhere in the combination.

note 1 : bird ringed in Shropshire or Mid Wales, UK.

note 2 :