Little Tern

Blue ring with a white three alpha-numeric code, starting letter "H" followed by two numbers or number/letter.

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Blue ring with a white three alpha-numeric code, starting letter "S" followed by two numbers or number/letter.

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Blue ring with a white three alpha code, starting letter "S".

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Black ring with a white three alpha code,  starting letter' L' (on left leg).

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Black ring with a white three alpha-numeric code, starting letter' L' (on left leg).

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Black ring with a white two alpha-numeric code (starting letter 'R' on right leg ; starting letter' L' on left leg).

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Black ring with a white two alpha code (starting letter 'R' on right leg ; starting letter' L' on left leg).

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Red ring with a white two alpha-numeric code (starting letter 'R' on right leg ; starting letter' L' on left leg).

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Red ring with a white two alpha code (starting letter 'R' on right leg ; starting letter' L' on left leg).

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Dark-green ring with a white two alpha-numeric code (starting letter 'R' on right leg ; starting letter' L' on left leg).

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