Wind turbines are killing birds and bats.

https://twitter.com/albertacantwait/status/1071458648096788480 
"The ornithologist Klaus Richarz was commissioned by the German Wildlife Foundation∗ to examine the effect of wind power in forest habitats. For 22 years, Richarz
headed a Bird Protection Observatory covering three German states. His study proves
that we have an urgent problem. The rotor blades of a wind turbine have a radius as
long as a football field and rotate at 300 km/h. Against these huge propeller walls,
red kites and other birds don’t stand a chance. The rotor blades hit large birds, such
as storks, raptors and ducks, particularly often. ‘Birds of prey’, says Professor Oliver
Krüger, ‘are relatively rare, need large areas, but collide disproportionately often.’ The
problem is getting accurate numbers, since foxes, rats, wild boars and other scavengers remove the bird corpses at night. However, it is estimated that 12,000 birds of
prey are killed by wind farms every year. For the number of all birds killed by the German wind industry there is an extrapolation from Hermann Hötker, an ornithologist
at German Foundation for Nature Conservation.† He estimates that each turbine kills
between one and five birds per year, meaning between 28,000 and 140,000 fatalities
in total.
Wind power lobbyists say the numbers are small compared to the millions of birds
that collide with windows, cars, power lines and other obstacles. But this is a fallacy,
because the argument ignores which species are affected. If ten city pigeons fly into
windows or cars, it has no effect on the population of pigeons. But when a breeding....  "   Source: GWPF, The Global Warming Policy Foundation:

https://www.thegwpf.org/content/uploads/2017/11/TrulyGreen.pdf