True. I well recognize the human toll on birds (and wildlife in general) thru expansion as well our structures well enough, but that's unstoppable. (Oh we can better design our towers, i think, a little smarter to minimize some collisions and surely safeguard windmills more intelligently) I wouldn't go quite go so far as Sir David Attenborrough recently offered and call humans a "plague"...but on balance this scale is proportionally a larger issue on scale than the cat predation. But what is likely to be done about that? Nothing! We both know not only that but that the trend will only deteriorate. But we can own responsibility for our cats. Not too much to expect, imo. And who wants large colonies of feral cats in urban areas? Not very many, that's why society rounds them up and destroys them immediately or allows them a few days and does the same for the unclaimed. This is not good.