And a flock of geese can take down an airliner - but we don&#x27;t react by jailing hawk or goose owners, we acknowledge the risk and mitigate it where possible and accept the risk where it&#x27;s not.<p>Perhaps you&#x27;ve hit upon a decent yardstick by which to evaluate the dangers of consumer &quot;drones&quot;, if it&#x27;s lighter than an ISO-standard hawk or goose, it&#x27;s something which the aviation people need to be dealing with anyway. If the heli pilot was flying above a highway in a manner where an unfortunately located bird might have caused him to crash - potentially onto a roadway full of bystanders cars - perhaps their behaviour was more reckless than the Phantom pilots...