Common Blackbird

Dark-green ring with a white three alpha-numeric code, starting letter 'C'.

note 1 : project starts during 2017.

note 2 : used letters are : A, B, C, D, F, G, H, J, K, L, M, P, S, T, V, X, Z.

note 3 : used numbers are : 0, 1, 2, 3, 4, 5, 6, 7, 9.

note 4 :

Combination of 3 c-rings:
* 2 c-rings (on one leg).
* c-ring above metal ring (on other leg).

note 1 :  

Orange ring with a black three alpha code, starting letter 'C'.

note 1 : project starts during 2016.

note 2 : used letters are : A, B, C, D, F, G, H, J, K, L, M, P, S, T, V, X, Z.

note 3 : 

Orange ring with a black three alpha-numeric code, starting letter 'C'.

note 1 : project starts during 2016.

note 2 : used letters are : A, B, C, D, F, G, H, J, K, L, M, P, S, T, V, X, Z.

note 3 : used numbers are : 0, 1, 2, 3, 4, 5, 6, 7, 9.

note 4 :  

Combination of 4 c-rings and a metal ring :
* 3 c-rings.
* black ring with a white letter code 'A' .

note 1 : black ring with white 'A' is the projectmarker in 2016.
Letters 'B' (2017), 'C' (2018), 'D' (2019), 'E' (2020) will be used.  

note 2 : used colours for c-rings are: dark-blue, white, dark-green, yellow, orange, red, pink.

note 3 :  

Combination of 2 c-rings (on left leg) and metal ring (on right leg).

note 1 : birds are ringed for a local project in the city of Rennes, FR.

note 2 : used colours are : white, orange, red, lime, black and yellow.

note 3 : 

Combination of 2 c-rings (on left leg) and c-ring plus metal ring (on right leg).

note 1 :  right leg=c-ring above metal. Starting from 2013:  right leg=mtal above c-ring. 

note 2: used colours are : yellow, orange, red, white, dark-blue, dark-green, black.

note 3 : birds ringed in Norfolk, UK.

note 4 :

Dark-blue ring with a white three alpha code (on left tarsus) and metal ring (on right tarsus).

note 1 : codes start with A or B.

note 2 : birds are ringed in Leicestershire, UK.

note 3 :

Dark-green ring with a white three numeric code (on left tarsus) and metal ring (on right tarsus).

note 1 : birds are ringed in Dumfriesshire, UK.

note 2 :

Dark-blue ring with a white three numeric code (on left tarsus) and metal ring (on right tarsus).

note 1 : birds are ringed in Cheshire & Merseyside, UK.

note 2 :