PORTLAND, Oregon (AP) ― Idaho farmer Robert Blair isn’t waiting around for federal aviation officials to work out rules for drones. He and a friend built their own, outfitting it with cameras and using it to monitor his 1,500 acres.

The aircraft is the size of a turkey and Blair uses it to get a bird’s-eye view of his cows and fields of wheat, peas, barley and alfalfa.

“It’s a great tool to collect information to make better decisions, and we’re just scratching the surface of what it can do for farmers,” said Blair, who lives in Kendrick, Idaho, north of Boise.

While Americans are abuzz about Amazon’s plans to use self-guided drones to deliver packages, most future unmanned aircraft may operate far from the nation’s large population centers.

Experts point to agriculture as the most promising commercial market for drones because the technology is a perfect fit for large-scale farms and vast rural areas where privacy and safety issues are less of a concern.

Already, farmers, researchers and companies are developing unmanned aircraft systems equipped with cameras and other sensors to survey crops, monitor for disease or precision-spray pesticides and fertilizers.

Drones, also known as UAVs, are already used overseas in agriculture, including Japan and Brazil.

And the possibilities are endless: Flying gizmos could be used to ward off birds from fields, pollinate trees, do snow surveys to forecast water supply, monitor irrigation, or plant and harvest crops.

The technology could revolutionize agriculture, farmers say, by boosting crop health, improving field management practices, reducing costs and increasing yields.

So far, drones have been used mainly by the military. Interest is booming in finding other uses for them, but the possibilities are limited because of regulations on the use of airspace and privacy concerns.