Hooded Crow

White ring with a black four alpha-numeric code.

note 1 : used codes are A000-A099.

note 2 : birds ringed on the SW-coast of Norway.

note 3 :  

Red ring with a white 3 alpha code (on left leg) and metal ring (on right leg).

note 1 :  

White ring with a black four alpha-numeric code (starting letter "C) on left leg and metal ring (in right leg).

note 1 : used codes are : C00A...C99A , C00E...C99E and C00U...C99U.

note 2 : birds ringed near the city of Vaasa, western Finland.

note 3 : ringer is Jouni Kannonlahti.

note 4 :

Combination of a metal ring (on one tarsus) and one c-ring (on the other tarsus).

note 1 : different colours, codes and symbols are used : see the attachment under.

note 2 : in 2012 the c-ring was on right leg, while in 2013 on the left leg.

note 3 :

Combination of a metal ring, a small coloured metal rings and a c-ring with a two alpha code.

note 1 : used colours for the c-ring are blue, green and red.

note 2 : used colours for the coloured metal ring are pink, orange, lilac and green.

note 3 : to the small coloured metal ring : 2 rings on each leg in a mix of colour and shape, due to better individual recognition.

note 4 : up to 100 marked individuals of Carrion and Hooded crows, marked during spring/summer 2010 in Vienna/Austria.

note 5 : this project is ended, rings are not used anymore and birds are still alive.

White ring with a three alpha-numeric code (first letter W followed by a two alpha-numeric code).

note 1 : birds are ringed in Warsaw, Poland.

Black ring with a white 2 alpha-numeric code (on left leg) and metal ring (on right leg).

note 1 : codes should be read from the foot up (except some exceptions).
note 2 : birds ringed at the Orkney Islands, Scotland, UK.
note 3 : during 2010 : 9 adults marked and during 2011 : 12 adults marked, 50 pulli.

Red ring with white 4 alpha-numeric code (starting letter 'S' and 3 numbers).

note 1 : rings are 2 cm high.
note 2 : birds are ringed in the National Park ‘Ujscie Warty’, Western-Poland.
note 3 : during 2004 13 pulli were ringed ; during 2011 the aim is to ring 20-30 nestlings.

Black ring with white 3 OR 4 alpha-numeric code (starting letter J')

note 1 : some hybrids are ringed in southern Norway.