Most apartment buildings don't have accessible roofs, at least where I live. But if that were possible, it'd be the safest altitude given they manage to avoid

Most apartment buildings don't have accessible roofs, at least where I live. But if that were possible, it'd be the safest altitude given they manage to avoid wires and antennas. If they make it to ground level, I think there'd be plenty of people who would try to catch these things.