Following the receipt of additional distribution information the known occupied range of the species has been mapped more precisely, with the remaining range reclassified as areas of possible occurrence:
Grey-headed Antbird (Ampelornis griseiceps)
Grey-headed Antbird (Ampelornis griseiceps)
A mail was sent to the red list team. +Assessment
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested in commenting. The window for consultation is now closed and we are unable to accept any more comments until 12 February 2024. We will now analyse and interpret the information, and we will post a preliminary decision on this species’ Red List status on this page on 12 February 2024, when discussions will re-open.
Preliminary proposal
Based on available information, our preliminary proposal for the 2024 Red List would be to adopt the proposed classifications outlined in the initial forum discussion.
There is now a period for further comments until the final deadline on 18 February 2024, after which the recommended categorisations will be put forward to IUCN.
The final 2024 Red List categories will be published on the BirdLife and IUCN websites in December 2024, following further checking of information relevant to the assessments by both BirdLife and IUCN.
Looking at the distribution map, I notice a large discrepancy from reality. Most of the supposed range in Ecuador is including areas that may look like forest on aerial photos, but in fact are just acaia scrub where goats have eaten all undergrowth and thus habitat for the species. It is an extremely local and rare species in Ecuador. My guess would be that the same goes for much of the supposed range in Peru. I would recommend that the species remains considered Vulnerable or even Endangered.
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested in commenting. The window for consultation is now closed and we are unable to accept any more comments. We will analyse and interpret the information, and we will post a final decision on this species’ Red List status on this page on 26 February 2024.
Recommended categorisations to be put forward to IUCN
Based on available information and following information received from Manuel Sanchez Nivecela, our proposal for the 2024 Red List is to pend the decision on this species and keep the discussion open, while leaving the current Red List category unchanged.
Many thanks for everyone who contributed to the 2024.1 GTB Forum process. The final 2024 Red List categories will now be published on the BirdLife and IUCN websites in October 2024, following further checking of information relevant to the assessments by both BirdLife and IUCN.
In Peru, on the main cordillera de los andes, this species has a very narrow elevational band where can be found. In that band, it is not common. The baitat is suffering from deforestation for agiculture and cattle ranching. Fires are also a reason to degade habitat. On the Amotapes mountain range, despite being a protected area, the species is not common. This one, I think, its a rare species occupying a very threatened habitat.
The map above shows a much bigger area that the one used by the species in Peru. My recommendation is to keep it as Vulnerable.
Preliminary proposal
Based on available information, our preliminary proposal for the 2024 Red List would be to adopt the proposed classifications outlined in the initial forum discussion.
There is now a period for further comments until the final deadline on 13 May 2024, after which the recommended categorisations will be put forward to IUCN.
The final 2024 Red List categories will be published on the BirdLife and IUCN websites in October 2024, following further checking of information relevant to the assessments by both BirdLife and IUCN.
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested in commenting. The window for consultation is now closed and we are unable to accept any more comments. We will analyse and interpret available information, posting a final decision on this species’ Red List status on this page on 20 May 2024.
Recommended categorisation to be put forward to IUCN
Many thanks to the contributors to this topic for assisting with the assessment and supplying additional information. These contributions led to the remapping of the distribution, posted above.
The final categorisation for this species has not changed, but an additional criterion has been added. Grey-headed Antbird is recommended to be listed as Near Threatened, approaching thresholds under Criteria B2b(iii) and C2a(i).
Many thanks for everyone who contributed to the 2024.2 GTB Forum process. The final 2024 Red List categories will be published on the BirdLife and IUCN websites in October 2024, following further checking of information relevant to the assessments by both BirdLife and IUCN.
Following the receipt of additional distribution information the known occupied range of the species has been mapped more precisely, with the remaining range reclassified as areas of possible occurrence. This considerably reduces the minimum bound of the forested area within the areas of known occurrence to between 890 and 981 km2 (2000 or 2010 tree cover respectively [Global Forest Watch 2024]). Employing the same assumptions as previously used (but noting that the more precise map may make the choice of 10% occupancy due to rarity more precautionary), the minimum population size would fall between 7,700-8,400 mature individuals. However, noting the subdivision of the population, it is estimated (using the same assumptions) that the largest subpopulation considerably exceeds 1,000 mature individuals. Hence under criterion C2a(ii), the species approaches but still does not meet thresholds for listing as threatened. The revisions to the map also do not have a material impact on the assessment under criterion B. A provisional maximum AOO based on the known occurrence mapped (hence the true AOO may yet be considerably greater if parts of the possible range is occupied) is calculated at 3,608 km2, based on 902 squares of 2 x 2 km placed over the remapped range. 10% of this would be approximately 90 2 x 2 km squares, or 360 km2. Noting that this is a minimum, and likely a highly precautionary estimate of AOO, this value does fall below the threshold for Endangered. While the rate of habitat loss remains slow (as above, recalculated values remain at 2% loss over a ten-year period incorporating the maximum rate of 5-yearly tree cover loss and included both the past and the future), a continuing decline in area of habitat is estimated. But the population is not severely fragmented and the operating threats indicate that the number of locations continues to exceed 10 considerably. Consequently, although the commentators are correct in that the range mapped previously appears to have greatly overestimated the occupied range, Near Threatened remains the best supported category for the species.