Wildlife experts have urged wind farm developers in Cumbria to be more aware of the potential risk to wild birds.
Hen Harriers are among the species at risk
The RSPB has issued a planning guide, which highlights areas that are home to species like the pink footed goose, whooper swan and hen harrier.
The organisation said the move was prompted by the proliferation of wind turbine planning applications.
The charity said it backed renewable energy plans, but wanted to reduce the number of poorly sited wind farms.
The RSPB produced the guide with the help of Natural England and Cumbria County Council.
Tim Youngs, RSPB conservation officer for Cumbria said: "The RSPB has been concerned for some time that areas lying outside statutory nature conservation areas are not adequately protected through the planning system.
"This has become an issue especially with the large number of wind energy proposals in Cumbria."
Jenny Wain, principal planning officer for Cumbria County Council, added: "The guide provides a very good starting point for planners and developers alike when looking at the potential areas might have for wind energy development."