Anecdote on this: I've been flying R/C planes and drones in some publicly accessible fields with friends for years. Some farmers were a bit confrontational when they saw us (sometimes understandably so, we were always careful but the occasional crash and aircraft retrieval in the middle of a field _did_ happen...). But a few of them were interested, and asked if we could arrange to take some pictures and videos of the fields at specific times, to search for fawns before harvest or similar things. We were happy to oblige, and in return got access to even nicer, non-public areas to gather and fly from regularly. Win-win for all involved.
There's business in routine agricultural overflights for year to year comparison and records, with multispectral cameras (expensive) for ANOVA plots when cross breeding for new crops with resistance, for rock outcrop plotting | individual large rock recording for { later pickup | hazard enty into tractor maps } etc.
A lot of that is done locally here ( large grain fields in Australia ).
I am putting together a computer vision dataset for detection, identification, classification and counting for cattle herds of Indian breeds, which are the strength of Brazilian livestock farming [where there are still a lot of cattle in free-range pastures]. The dataset will also be useful for monitoring illegal livestock farming in protected areas, such as the Amazon. The scarcity of images of these types of cattle on the Internet, where European varieties are prevalent, forces me to negotiate with local farmers to fly my drones in order to obtain the images. It's not an easy job. Most are confrontational and hostile. I move forward with great difficulty but I will not give up. Soon at cownt.com.br.
Fawns as in "deer children". When young, they lie down in fields a lot, and don't have the flight instict developed yet, so if they're in the field with the "parent" deer out getting food and the tractors / harvesters come by, it can be legitimately dangerous.
Besides deer protection and wildlife management in general, they're used in SAR and police - especially in mountainous or forest areas, it's just soooo much faster to send a quick-response team with thermal drones than to travel by foot or wait for a chopper to show up. Obviously in rough weather you still need a legit chopper, but for stuff like "find someone who didn't return from a hike/called for an emergency without knowing where he precisely is" they're just fine.
On the infrastructure side, you can use thermal drones in construction planning to detect if/where a building is losing heat, spot (beginning) defects in industrial installations and inspect if a power line is still working acceptably. DJI also pairs the thermal camera with a decent photo camera so you don't need to send up two drones for the job.
Is it? I believe the commercial application for drones with thermal cameras is fairly well establish at this point. You can spot a lot of things in buildings, transmission lines, etc.
I grew up on a farm in the nineties, and in my teens, I saw a roe deer fawn that went through a forage harvester.
Surprisingly enough, there was almost no blood, but every bone in the animal was broken. The load of silage that it ended up in had to be thrown out, the forage harvester itself, needed some light repairs, the harvest got delayed a few hours, and the whole thing was really depressing.
Luckily as far as I can remember it happened only once, and it was definitely something that we tried hard to avoid.
