
Conservationists and police have appealed for anyone with information to come forward after the incident which happened last week at Otter Lake at the Irthlingborough end of the nature reserve. On the 24th of June members of the public saw one of the banks being damaged, panels were broken and tubes filled with sand for the birds to nest in were thrown in the lake.
Sand martins were once scarce at the Nene Wetlands and three years ago the Wildlife Trust bought and installed two artificial banks at a cost of £3,000 each. Last year conservationists were delighted to see they were being used by sand martins to nest for the first time.