Common Magpie

White ring with a black four alpha-numeric code, starting letter 'C'.

note 1 : up to 2014,a total of 50 rings were delivered since 2004.

note 2 :

White ring with a black three alpha-numeric code.

note 1 :

Combination of c-rings.

note 1 : used colours are : black, blue, green, light-blue, red, white, yellow and metal.

note 2 : the project runs since 1989 in the districts of Soest/Central Wes-Falia and since 1990 in the city of Bielefeld/East-Westfalia.

note 3 :

Yellow ring with a black three alpha code.

note 1 : ringing started in the parcs of Courneuve et du Sausset, FR with the aim to ring 50% of the population and to better understand the population dynamic of the urban population.

note 2 : partners for the study are Muséum Nationale d'Histoire Naturelle, Département de la Seine-Saint-Denis, Centre Ornithologique de la Région Ile-de-France, la Ligue pour la Protection des Oiseaux Ile-de-France and the Comité des Usagers des Parcs du département.

note 3 :

Combination of c-rings :
- two c-rings above metal ring (on left leg).
- two c-rings (on right leg).

note 1 :  used colours are yellow, green, blue, white, black, red.

note 2 : 

Combination of c-rings :
- metal ring (on left leg).
- 2 c-rings (on right leg).
OR
- c-ring above metal (on left leg).
- 2 c-rings (on right leg).

note 1 : birds ringed in UK, county Cambridgeshire.

note 2 : used colours are white, green, yellow, orange, red, blue, silver; red, blue and green with white stripe.

note 3 :

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

note 1 : birds ringed in the UK, county Cornwall.

note 2 :

Combination of 1 c- ring (letter 'A') and metal ring.

note 1 : by using different colours and combinations, a unique code was created.