Are you aware every city on the planet controls rat / rodent infestations by leaving poisoned bait for them to eat, which causes them to go away from where the bait is to seek water, so they die someplace else? Do you imagine coyotes, opossums, raccoons and birds of prey living in a 5 story concrete parking garage? Ever see birds of prey eating dead pigeons, or dead anything? They don't eat dead things. You know why? Because even pea brained birds understand that if the thing died, it's not healthy to eat it. You are absolutely retarded and don't know a single fucking thing that you pretend to know about here. If you had roaches in your house, are you just accepting them as part of your homes ecosystem? Shut the hell up. You know what the 'collateral damage' from my plan was - it was over 30% of the parking spots becoming usable when they had not been before because of bird shit. Also, an absence of massive deposits of disease spreading bird shit. Do you understand that large numbers of birds shitting inside a building where rain never washes it away is a very serious source of very bad diseases?