6 thoughts on “Rio de Janeiro Antbird (Cercomacra brasiliana)”
It is not clear what type of forest Cercomacra brasiliana prefers. There are some “gaps” in its range. In Bahia, the species is restricted to a few localities, only in more preserved mountain areas. The species probably lost much of its habitat in the previous century. I suggest keeping this species as NT until it is better known.
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 25 April 2025. We will now analyse and interpret the information, and we will post a preliminary decision on this species’ Red List category on this page on 25 April 2025, when discussions will re-open.
We thank all contributors for their comments. While this species may be declining due to ongoing habitat loss, there remains no evidence that it approaches threatened thresholds. Its listing as Near Threatened can therefore no longer be upheld. There is no evidence for particularly rapid declines, and while the population size plausibly does not exceed 10,000 mature individuals overall, it does not meet or approach the required subcriterion for C2a(i) as there are subpopulations that exceed the threshold of 1,000 mature individuals. It should be noted that this category change reflects updated information (i.e., a correction to the previous assessment) rather than a genuine improvement in extinction risk. Based on available information, our preliminary proposal for the 2025 Red List would be to adopt the proposed classification outlined in the initial forum discussion.
There is now a period for further comments until the final deadline on 4 May 2025, after which the recommended categorisations will be put forward to IUCN.
The final 2025 Red List categories will be published on the BirdLife and IUCN websites in October 2025, following further checking of information relevant to the assessments by both BirdLife and IUCN.
Although the habitat requirements of the species are not yet well understood, its EOO is larger than 170,000 km² (ICMBio, 2025). The replacement of its habitat by agricultural crops is the main threat to the species (ICMBio, 2025), but it doesn’t currently put it at risk of extinction.
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 a final decision on this species’ Red List category will be posted on this page on 12 May 2025.
Recommended categorisation to be put forward to IUCN
The final categorisation for this species has not changed. Rio de Janeiro Antbird is recommended to be listed as Least Concern.
Many thanks for everyone who contributed to the 2025.2 GTB Forum process. The final Red List categories will be published on the BirdLife and IUCN websites in October 2025, following further checking of information relevant to the assessments by both BirdLife and IUCN.
It is not clear what type of forest Cercomacra brasiliana prefers. There are some “gaps” in its range. In Bahia, the species is restricted to a few localities, only in more preserved mountain areas. The species probably lost much of its habitat in the previous century. I suggest keeping this species as NT until it is better known.
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 25 April 2025. We will now analyse and interpret the information, and we will post a preliminary decision on this species’ Red List category on this page on 25 April 2025, when discussions will re-open.
Preliminary proposal
We thank all contributors for their comments. While this species may be declining due to ongoing habitat loss, there remains no evidence that it approaches threatened thresholds. Its listing as Near Threatened can therefore no longer be upheld. There is no evidence for particularly rapid declines, and while the population size plausibly does not exceed 10,000 mature individuals overall, it does not meet or approach the required subcriterion for C2a(i) as there are subpopulations that exceed the threshold of 1,000 mature individuals. It should be noted that this category change reflects updated information (i.e., a correction to the previous assessment) rather than a genuine improvement in extinction risk. Based on available information, our preliminary proposal for the 2025 Red List would be to adopt the proposed classification outlined in the initial forum discussion.
There is now a period for further comments until the final deadline on 4 May 2025, after which the recommended categorisations will be put forward to IUCN.
The final 2025 Red List categories will be published on the BirdLife and IUCN websites in October 2025, following further checking of information relevant to the assessments by both BirdLife and IUCN.
Although the habitat requirements of the species are not yet well understood, its EOO is larger than 170,000 km² (ICMBio, 2025). The replacement of its habitat by agricultural crops is the main threat to the species (ICMBio, 2025), but it doesn’t currently put it at risk of extinction.
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 a final decision on this species’ Red List category will be posted on this page on 12 May 2025.
Recommended categorisation to be put forward to IUCN
The final categorisation for this species has not changed. Rio de Janeiro Antbird is recommended to be listed as Least Concern.
Many thanks for everyone who contributed to the 2025.2 GTB Forum process. The final Red List categories will be published on the BirdLife and IUCN websites in October 2025, following further checking of information relevant to the assessments by both BirdLife and IUCN.