Grey Heron

Red ring with a white four alpha code.

note 1 : starting letter "I" and three letters.

note 2 : “2 letters” are ringed by Trento Natural History Museum and “3 letters” are ringed in the Po Delta Park.

note 3 : for marking scheme info. , please refer to : stefano.volponi@isprambiente.it

note 4 :

Red ring with a white three alpha code.

note 1 : starting letter "I" followed by 2 letters OR 3 letters.

note 2 : “2 letters” are ringed by Trento Natural History Museum and “3 letters” are ringed in the Po Delta Park.

note 3 : for marking scheme info. , please refer to : stefano.volponi@isprambiente.it

note 4 :

Red ring with a three alpha-numeric code (1 number and 2 letters).

note 1 :

White ring with a black four alpha-numeric code.

note 1 : starting letter "U".

note 2 : during 2006 and 2008 c-rings were placed on the right leg, the metal ring on the left leg (both on tibia).

note 3 : during 2007 and 2009 rings were placed on the left leg, the metal on the right leg (both on tibia).

note 3 : total number of ringed birds per year : 2006:86 ; 2007:116 ; 2008:92 ; 2009:69.

White ring with a black three alpha-numeric code.

note 1 : starting letter "Y followed by a two numers and/or letters.

Dark-blue ring with a three numeric code.

note 1 : used codes are : 001-999.

note 2 : this project runs since 2007.

Yellow ring with a black three alpha-numeric code (on right tibia) and metal ring (on left tarsus).

note 1 : used codes are : A00-A99, B00-B97, C00-C99, E00-E99, H00-H99, J00-J99, K00-K99, L00-L99, N00-N99, P00-P99, S00-S99, T00-T99, U00-U99, V00-V99, X00-X99, Y00-Y99, Z00-Z99.

note 2 : the number of the c-ring on leg is to be read from top to bottom.

note 3 : this project started during spring 2007.

note 4 : another project with a yellow ring is very ‘close’.

Yellow ring with a three alpha-numeric code.

note 1 : project began in 1985 and is currently in use.

note 2 : used letters in first position are : A, B, C, F, H, J, K, L, M, N, P, R, T, U, V, W, X and Z. 

note 3 : another project with a yellow ring is very ‘close’ but the differences are :
* c-ring on left tibia.
* metal on right tibia.
The ring is to be read from bottom to top.

note 4 : 

Yellow ring with a black three alpha-numeric code (on left tibia) and metal ring (on right tibia).

note 1 : this project started during spring 2009.

note 2: the number of the c-ring on leg is to be read from bottom to top.

note 3 : another project with a yellow ring is very ‘close’.
Differences : the colour ring on left tibia. Metal on right tibia. The ring is to be read from bottom to top.

Combination of two rings (on right tibia) and one ring and metal ring (on left leg).

note 1 : birds are ringed in Extremadura (south-west Spain) by the Grupo de Investigacion en Biología de la Conservación.