since the waiting drone is a camera drone wouldn't it just activate the camera and have some object detection as well as the sound detection? turn enough to see

since the waiting drone is a camera drone wouldn't it just activate the camera and have some object detection as well as the sound detection? turn enough to see where noise is coming from, anything the size of a helicopter, wait until next sound source? on edit: ah, I understand a later comment better now, but I mean, detecting the waiting drone is probably going to involve that waiting drone doing lots of movement - not turning its camera to look at noise source. Maybe helicopter moving should just have an increasing number of little anti-drones flying with it, increasing further the cost and complexity of helicopters.