White ring with a black 3 alpha-numeric code (on left leg) and metal ring (on right leg).
note 1 : codes used : X00-X99.
note 2 : birds ringed in county Oxfordshire, UK.
note 3 :
note 1 : codes used: V00-V99.
note 1 : first letter "B" or "H".
note 2 : birds ringed in county Leicestershire, UK.
White ring with a black 3 alpha code (on left leg) and metal ring (on right leg).
White ring with a black three alpha-numeric code : starting letter 'F'.
note 1 : used codes are F+number+letter or F+letter+number or F+number+number.
note 2 : birds ringed in Suffolk, UK.
White ring with a black three alpha code : starting letter 'F' followed by two letters.
note 1 : used codes are FAA ... FZZ.
Yellow ring with a black 3 alpha-numeric code (on left leg) and metal ring (on right leg).
note 1 : first digit : A or B.
note 2 : birds ringed in county Buckinghamshire, UK.
Yellow ring with a black two numeric code (on left leg) and metal ring (on right leg).
note 1 :
Yellow ring with a black two alpha code (on left leg) and metal ring (on right leg).
note 1 : first digit : C, D or F.
note 2 : birds ringed in county Kent, UK.