New Zealand Birds

DSC_3216 Red-billed gull (Larus scopulinus) adult from an inland breeding colony at Rotorua. You can see reduced webbing on the feet, which have been corroded by the warm acidic waters near the Sulphur Point breeding colony.

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DSC_3216 Red-billed gull (Larus scopulinus) adult from an inland breeding colony at Rotorua. You can see reduced webbing on the feet, which have been corroded by the warm acidic waters near the Sulphur Point breeding colony.

redbilled gull DSC 3216 Chroicocephalus Larus novaehollandiae adult inland breeding colony Rotorua lake reduced webbing feet corroded corrosion warm acid acidic waters Sulphur Point scopulinus