I agree that given the projected decline on Gough the species would currently meet the criteria to be listed as Critically Endangered. However, that status is almost entirely due to the low productivity imposed by mouse predation on Gough Island. On 14 June 2021 a mouse eradication commenced on Gough Island, and it is plausible that the main threat for this species could be removed by the end of August. We would therefore recommend to postpone a potential change in the status of this species until October 2021, and only uplist the species to Critically Endangered if the mouse eradication on Gough has failed and the declining trend can be assumed to continue.
I concur with Steffen – deferring this for a year to evaluate the success of the current mouse eradication operation (addressing the main threat) is sensible.
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested by so many people in commenting. The window for consultation is now closed. We will analyse and interpret the new information and post a preliminary decision on this species’s Red List status on this page in early July.
Thank you once again,
BirdLife Red List Team
Based on available information, our proposal for the 2021 Red List is to pend the decision on this species and keep the discussion open until 2022, while leaving the current Red List category unchanged in the 2021 update.
There is now a period for further comments until the final deadline in mid-July, after which the recommended categorisations will be put forward to IUCN.
Final 2021 Red List categories will be published on the BirdLife and IUCN websites in December 2021, following further checking of information relevant to the assessments by both BirdLife and IUCN.
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Contact the BirdLife Red List Team under redlistteam [at] birdlife [dot] org.