Concerns had grown for the birds at the lake after deteriorating water quality left them visibly unwell, with tens of birds treated at the South Essex Wildlife Hospital in July alone. Earlier in the year, two of the cygnets were killed by foxes, while four others were taken to South Essex Wildlife Hospital in June. Sue Schwar, who runs the South Essex Wildlife Hospital, warned last week that "everything in there is going to die" as a result of what Mr England described as an "environmental disaster". (Image: Wayne Alderton)Sad - The South Essex Wildlife Hospital saw 'at least 30 animals' in July. Castle Point Council issues updates on their FAQ page: www.castlepoint.gov.uk/w/canvey-lake.