It’s obvious parties who are against renewables will use this problem to their advantage acting like the dead birds are the thing care about. Obviously switching from wind energy to fossil energy is not desirable, and luckily fossil fuels aren’t the only alternative. Birds prefer to travel during the day, when there is also solar power for example. This is not a black and white discussion where you are either in favour of killing birds or in favour of saving the planet. Halting climate change and limiting the amount of animals dying for bad reasons are not mutually exclusive goals.