Environmental & Terrain Considerations
The time required for a thorough search depends heavily on the environment. For example:
- Open fields can be scanned relatively quickly.
- Urban areas require more time due to buildings, fences, vehicles, and other obstacles.
- Dense foliage slows scanning, while bare trees allow faster coverage.
Environmental “clutter” (structures, brush, ground debris, etc.) reduces search efficiency and may obscure thermal signatures entirely.
Animal Behavior Variables
Animal movement is also a major factor. A highly active animal may be easier to detect due to motion and heat variation, but it may also:
- Run outside the initial search area,
- Stay constantly on the move,
- Or double back into previously searched zones.
Conversely, animals that hide, bed down, or remain motionless may be difficult to detect until they shift position or emit enough distinguishable heat.
Essential Role of the Owner or Handler
A person who knows the animal—its habits, tendencies, and preferred hiding spots—is invaluable. This individual can:
- Help identify priority search zones,
- Interpret likely movement patterns,
- Watch a large monitor near the pilot to provide additional eyes on the search feed,
- And serve as the recovery handler once the animal is located.
The large external monitor is often easier to interpret than the smaller controller screen, allowing quicker recognition and confirmation. When an animal is located, the pilot can guide the recovery person precisely to the location via radio or mobile communication.
Where and When Can a Drone Fly?
Drone operations are regulated by federal aviation rules as well as environmental conditions. Weather can prevent flights from taking place. For example, the FAA requires a minimum of
3 statute miles of visibility for legal operations, and the drone must remain
at least 500 feet below cloud ceilings. In addition, the pilot must maintain
visual line of sight with the drone at all times during flight.
Beyond weather, there are also
restricted or controlled airspace areas (“no fly zones”) where drone operations may be prohibited or require prior authorization. These restricted areas can typically be reviewed and planned for before mobilizing to a search location. However,
weather is constantly changing, and may only be deemed suitable at the time of flight. As a result, weather and airspace restrictions may limit or delay operations, even if a search area has otherwise been identified.