Thermal Drones and Teamwork: How Yorkshire Dales Keepers Are Saving Red-Listed Waders

Modern gamekeeping is as much about conservation and habitat creation as it is about protecting gamebirds. On the moors and meadows of the Yorkshire Dales, the two go hand in hand, and a quietly remarkable conservation effort is unfolding each spring on the moor edge and the farmland below it.

The Yorkshire Dales Moorland Group has shared a compilation of footage showing keepers putting thermal-imaging drones to work, locating curlew and oystercatcher nests in hay and silage fields before cropping begins. Ground-nesting waders are dangerously vulnerable at this time of year. Their nests sit hidden in tall grass, invisible to a tractor driver and directly in the path of mowing and harvesting machinery. A single pass can destroy a clutch in seconds.

The drones change that. Flown at first light, when the temperature difference between a sitting bird and the cool ground is greatest, the thermal cameras pick out the faint heat signatures of nesting birds that no human eye could spot from the field. Once a nest is found, keepers can mark and protect it, and work with the farmer to mow around it or delay cropping in that area until the chicks have fledged.

What makes the approach so effective is that it does not work in isolation. Combined with predator control and physical nest protection, the drone work is safeguarding dozens of red-listed waders that would otherwise be lost. The result is a measurable difference to fledging rates across the moor edge and the adjacent meadows where so many of these birds come to breed.

It is far from easy. The work is time-consuming, and the weather has to cooperate before a drone can safely fly. Locating a tiny, almost indiscernible heat signature in a sweep of grassland takes patience and genuine skill, and the Dales keepers have become increasingly accomplished at it over recent years. As the Moorland Group notes, the keepers themselves seek no credit for any of this, gut the group rightly believes they deserve recognition.

This is conservation in its most practical form: keepers and farmers working side by side, pooling local knowledge and new technology to give vulnerable species a fighting chance.