Owl crap?
https://calwatchdog.com/2013/04/09/ca-where-environmental-laws-protect-bird-poop/
Farmers put up Owl boxes on their farms so the Owls will have a place to nest. These birds are very efficient at hunting down their prey (rodents) on nightly forays. Their excrement also includes the bones and fur of these animals they have consumed. Because of food safety laws, Owl boxes cannot be used on farms because their excrement MAY cause food contamination. Food safety laws have produced another level of Government regulatory ‘tin horn bureaucrats’ as they try to keep food free of Salmonella, etc. Food safety is very important to consumers and is also a concern for Farmers. Any crops found contaminated by another Gov’t agency cannot be sold for public consumption and the producer takes an economic loss. We do not need these agencies increasing our food costs.
In the video he also mentions that because of air emissions, cars aren’t allowed to park in orchards amongst the trees.