The new drones can mimic birds.

New biomimetic drones flap their bionic wings like bugs. That thing makes the more compact and hard to see. But when we think about flapping-wing robots. Those robots can look like birds. They can fold one's wings like a bird. And that makes it possible to create ultra-realistic-shape bird-looking robots. 

Those systems are otherwise like normal drones. But they look like real animals. The biomimetic bird-shaped robot can make biological surveillance missions and research the animals without disturbing them. Those animal-shaped robots can also act as surveillance operator for their operators. The animal-shaped robot can observe targets with very low profiles. 

This is how bionic wings reshape drones. 

When we want to make biomimetic robots that look like birds. Those things can be masked as crows or some other common bird species. Those systems can carry seismic sensors, microphones, and laser microphones. The system can have line cutters in its nose. That allows it to sabotage by cutting wires. The animal-shaped drones and robots can have many purposes. The robot can observe things. It can act as an assassination tool. Or simply the kamikaze drone. Those systems can carry regular or poisonous weapons. 

The small pressure-air weapon can send that poison stylus or things like cobra poison. Or internal explosive loads. Those things can be extremely dangerous for national security. If those systems carry things like zombie poison and tetrodotoxin, they can order people to carry their secrets to those drones' mouths in the form of a USB stick. Those drones are more multipurpose than just simple explosive carriers. The kamikaze drone, or robot that looks like a bird or some other animal can slip near the target and detonate itself. 

Otherwise, biomimetic structures make it possible to create drones that put their flapping wings like bats. That makes it possible to transport them more easily than if the system cannot close their wings. That allows operators to pack those robots in high-speed capsules like cluster bombs. Those systems can deliver those drones using high-speed aircraft. And they can be a threat to all things near that point. For things like small nuclear batteries, and radioisotope thermoelectric generators, the small drone can operate even for years. 

https://interestingengineering.com/military/china-invisible-drones-flap-wings-like-birds