More than 200 dead seabirds were discovered across East Lothian 's coast and beaches over the weekend as the cause remains a mystery.
Tests for avian flu are being carried out after hundreds of gannets were washed up onshore in the last couple of weeks.
East Lothian Council said its countryside rangers had reported a further 215 dead birds being found between Friday and Sunday between Yellowcraig beach and Tyninghame.
