The number of gannets nesting in Alderney has increased by 24% in the past six years.
An aeriel survey carried out in July showed there were almost 7,500 nesting pairs of gannets in the island.
The birds were first found to be nesting in Alderney in 1940 on Ortac off the island's coast.
The census was carried out by the Alderney Ornithological Group. Now the two colonies account for almost 2% of the world's nesting gannets.
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