Are buildings in Antwerp allowed to have windows? This data from Canada in 2013 says for every bird killed by a wind mill about 1000 are killed by "Collisions w

Are buildings in Antwerp allowed to have windows? This data from Canada in 2013 says for every bird killed by a wind mill about 1000 are killed by "Collisions with Houses". https://birdwatchingbuzz.com/do-windmills-kill-birds/ https://birdwatchingbuzz.com/do-windmills-kill-birds/ Interestingly the article claims that the power lines that connect the wind mills kill more birds than the wind mills themselves.