I have experience with flying small airplanes, and their windshields got pretty icky with bugs pretty quickly. These days I have a motorcycle, and after 2 hours

I have experience with flying small airplanes, and their windshields got pretty icky with bugs pretty quickly. These days I have a motorcycle, and after 2 hours on the highway or 1 hour in natural undeveloped areas your helmet gets completely covered by bugs. On the other hand, bird strikes are relatively uncommon, and drones are tiny so the risk is even lower for them. So it might not be that big of an issue. But they would be great at exterminating bugs.