Wheatears

Combination of 3 or 4 c-rings and the metal ring (left or right leg) [1].
Combination of 4 c-rings and the metal ring (left or right leg) [2].

[1]
note 1 : 2 or 3 d-rings on each leg.

note 2 : the used colours are white, red, orange, yellow, green and dark-blue.

note 3 : in 1998-2002 a total of 1812 birds were marked individually on Helgoland, Germany.

note 4 : a similar project is run in Iceland, Fair Isle and Gibraltar.

[2]
note 1 : the metal ring is anodized in red.

note 2 : the used colours are white, yellow, orange, red, dark-green, dark-blue and black.

note 3 : one colour ring is above the metal ring.

note 4 :