Terns

species: 
Common Tern
scientific name: 
Sterna hirundo
notes: 

Yellow ring with a black three alpha-numeric code, starting letter 'C' (on left leg) and metal ring (on right leg).   

note 1 : birds ringed in UK, by Southern-colour Ringing Group in the London and surrounding areas.

note 2 : used codes are : CA1 – CX0 (C. letter. number) and C1A – C0X (C. number. letter)                                 

note 3 :

website sighting submit: 
Southern Colour Marking Group
email sighting submit: 
website information: 
Southern Colour Marking Group
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Yellow [Y]
colour-ring code (of the c-ring): 
Three alpha-numeric code (3 letters/numbers).
colour-ring position (of the c-ring): 
Tarsus left.