> I imagine the scale is something... Do you have sources for this scale? > Windmills take the top spot for being a constant barrage over a large area. They'

> I imagine the scale is something... Do you have sources for this scale? > Windmills take the top spot for being a constant barrage over a large area. They're also static, so animals can just avoid them. Their blades spin a hundred feet above the water. Ships move around so their sounds can be anywhere. Their propellers spin in the water. And there are way more large ships than offshore windmills.