I'm not clear about where you got the idea that the drones were the size of mosquitoes. The article mentioned that each one was propelled by a single 1-inch (2

I'm not clear about where you got the idea that the drones were the size of mosquitoes. The article mentioned that each one was propelled by a single 1-inch (2 1/2 cm) propeller and weigh about one pound (1/2 kg). The picture in the article showed a small fixed-wing aircraft. It looks like aircraft of that nature would have far less maneuverability and far greater range than a natural organism that size. But I am glad you contributed this comment; I agree that objects that small are more vulnerable to gusts of wind and predators.