Colour code
The birds of this project have a coloured ring with a 2 character inscription on one upper leg and a plain coloured ring on the other upper leg.
The color code exists consists of 4 consecutive elements: The color code consists of the descriptions of the flag and the plain ring, both separated by a slash ("/"):
inscription ring (3 elements)
- The letter indicating the colour of the flag (1 letter)
- a hyphen ("-")
- the inscription (always 2 characters)
plain ring (1 element)
- The letter of the color
Example W-AA/G. This bird has a white ring with inscription AA on the left upper leg and a solid green ring on the right upper leg.
colour-letters
- B = dark Blue
- L = light green ("Lime")
- N = black ("Noir")
- O = Orange
- R = Red
- W = White
- Y = Yellow
