![](https://altitudeconservation.com/wp-content/uploads/2023/09/Stoats-pest.jpg)
Species: Stoat (Mustela erminea)
Location: New Zealand
Status: Introduced pest species
Introduced stoats are a major predator of native bird species in New Zealand. The researcher needed to track radio-collared stoats to monitor their dispersal range and movement corridors into a national park.
Altitude Conservation provided a Multi-Track Drone Ranger system to assist, searching a large area more quickly and efficiently than was possible from the ground, and helping to highlight the difficulties of tracking small, highly mobile animals with low-power transmitters.
![](https://altitudeconservation.com/wp-content/uploads/2023/09/stoat-national-park-1024x768.jpg)