Table 1 Summary of fate classifications from 58 satellite-tracked hen harriers
Classification | Description | No. of birds ascribed to each category (%) |
|---|---|---|
A | Bird alive and tag still transmitting | 7 (12%) |
N | Bird recovered and cause of death established to be natural | 5 (9%) |
I | (i) Bird dead, confirmed to have been illegally killed or (ii) tag harness recovered intact with no evidence of bird | 4 (7%) |
TF | (i) Transmitter malfunctioned (i.e. the tag ceased transmitting but the bird was seen alive) or (ii) tag failure likely due to diagnostic plots | 4 (7%) |
SNM | Transmitters suddenly stopped with no malfunction detected | 38 (66%) |
