Despite the fairytale stuff put forward about delivering things to houses in built up areas of large cities, drone can be useful. Patrolling of protected regions for environmental damage is efficient and less costly than other methods.
Conservation Drones a US company is mass producing drones to meet projected demand. Accidents will occur even though the drones will not land away from the operator, but injuries should be rare. Drones zooming around above our head will become the norm. Will there be complaints? Yes there will.
The first major project will be to protect elephants in Africa. The distance that drones can travel will have to be significantly improved to do the job properly. At the moment helicopters are used. These can be expensive as well. They do have better range, however.
Maximum range for non-military drones is about 40kms. High resolution videos can be taken. Preprogramming is possible to carry out surveillance and data collection. A test to monitor frigate birds has been successful in Western Australia
Conservation by Ty Buchanan