Suspected or observed reasons for failure at nests in 2022 included:
- forestry management (harvesting) activity and associated human and vehicular/machinery-related disturbance;
- human (walking) disturbance;
- dog walking (on and off leads);
- off-road trail motorbike (scrambler) disturbance;
- predation (mammalian);
- predation (dog);
- predation (avian); and
- digging (turf / machinery) disturbance