Work has started to remove some of the netting put up over cliffs at Bacton in North Norfolk. The nets were put up ahead of a multi-million pound scheme to stop coastal erosion.
Environmentalists claimed it was putting migrating sandmartins at risk. Today they welcomed the removal of some of the netting but said it could have come too late for the birds.
Specialist abseilers have started taking it down - however only part of the netting is being removed.
It was Maggie's footage of sand martins returning from Africa and failing to get past the nets that brought the situation into the public domain.
The netting was put up as preparation for an erosion prevention scheme called sandscaping to protect houses in Bacton and Walcott but mainly the gas terminal.
The removal of the upper layer of netting is likely to continue all weekend.