Environmentalists are warning that thousands of birds could be at risk if proposals to build a wind farm on Romney Marsh in Kent go ahead.
Protesters claim the wind farm would be an environmental disaster
The RSPB and English Nature say Bewick's swans and other birds that use the area for roosting and feeding could fly into the turbines and die.
Npower says the wind farm at Little Cheyne Court on the Sussex border would have minimal impact.
The plans go to a public inquiry on Tuesday this week.
Kent County Council opposed the scheme but the inquiry was called after developers appealed.
Npower said the wind farm will provide pollution-free electricity to three quarters of the homes in the area.
"It will have minimal impact and that is the evidence we will put before the inquiry," said spokesman Simon Wells.
Authorities which have objected to the plan include Kent County Council, Shepway District Council and Camber Parish Council in Rye, East Sussex.
Resident Caroline Solly said: "Most people have moved here because they love the environment.
"Destroying it with industrial-sized turbines is not the answer."
Environmentalist David Bellamy is among those who have spoken against the plans.