What are you planning on using - a ReFLEX 50 network?
No.
A commercially available thermal camera. A commericially avaliable lasing rangefinder. A proprietary, 3 axis, gimbal mount for the imaging and ranging systems. A commerically available GPS receiver. A proprietary board containing local, 3 dimensional, terrain maps, a small number crunching chip and a 3-6 watt transmitter. A proprietary board for propulsion mangement, navigation and flight control. The rest is straight forward materials and equipment found in RC soaring supply catalogs. About the only other item that's expensive is the refractive, absorbing paint if you'd like to remain beyond the eyes of big brother.
The resultant system weighs less than 15 pounds, is silent beyond 100 meters, has an extremly small radar cross section and an endurance of about 45 minutes. Images acquired at a silent range are suitable for recognition software analysis and target position is real time to about 1 meter.
If the trekkers are less than 15 miles from the launch point the system can produce useable still images and video clips of the coyote(s) and the age and gender of the clients so the BP can take a head count after the round up.
The point of this expalnation is that the systems are readily available to the private sector, for a price, but the system raises a whole host of other issues, the least of which is privacy litigation.