Are you in favor of outlawing cats too, which apparently send more birds to their demise than those dastardly tall buildings....
No one asked me, but if you own a cat, keep it in your fucking house.
Do we have to give everyone who gives a shit about other animals a hard time? I'm not saying we should stop building. I think density plays a big enough roll in improving the environment that some birds flying into buildings is a reasonable cost, but people who want to protect birds are not "nut jobs."