Sounds like a perfect playground for a bio‑acoustic sensor swarm, just let the wind do the tuning. Grab some tiny piezo pickups from the bark, wire them to low‑power microcontrollers that sleep until a hum hits a threshold, then wake up, log the frequency, and send the data via ultra‑low‑power radio—think sub‑milliwatt BLE or even sub‑GHz LoRa. Pair that with a little solar panel on the canopy and the grove becomes a living, breathing sensor network that whispers back to you whenever the wind starts singing. Keep the code lean, the sleep cycles long, and you’ll have a network that runs on the forest’s own soundtrack.