Yes, and the damage from birds is large: &quot;Experts say bird strikes...cause an estimated $600 million a year in damage to planes.&quot;<p><a href="http:&#x2F;&#x2F;www.nydailynews.com&#x2F;new-york&#x2F;birds-plane-crashes-article-1.361189" rel="nofollow">http:&#x2F;&#x2F;www.nydailynews.com&#x2F;new-york&#x2F;birds-plane-crashes-arti...</a><p>The cost of a single downed passenger plane is ~$1B, while the entire yearly value of the drone market is $50M.<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11425782" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11425782</a><p>Even their usage&#x2F;value of drones were kept fixed, then it could make sense to ban them even if drones only cause one airplane crash per decade.  Obviously, this argument fails when you consider future value, but the point is that the numbers are not intuitive.