5 thoughts on “Sumba Warbling-flycatcher (Eumyias stresemanni)”
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.
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.
Based on data compiled by our team at the Sumba Programme of Burung Indonesia, this species has been confirmed from at least nine locations that are geographically dispersed across the island. The data are derived from a combination of occurrence records sourced from eBird and consultations with the monitoring team of the Manupeu Tanahdaru–Laiwangi Wanggameti National Park Authority.
These locations are relatively distant from one another and, in many cases, situated in distinct forest fragments. This spatial pattern suggests that the population is relatively fragmented, and possibly biologically fragmented as well, which may have implications for gene flow and long-term population viability.
Reliable estimates of population density or abundance are not currently available due to the limited scope and frequency of systematic surveys. However, based on interviews with local communities and discussions with the national park monitoring team, the species is described as infrequently encountered, and can therefore be considered uncommon.
There is currently no evidence that this species is a primary target for bird poaching or trade. We have found no records of the species in bird markets, on social media, or in reports from the national park monitoring team. Accordingly, we do not consider trapping or trade to be a significant current threat to this species.
The primary threat is more likely related to habitat loss or degradation, particularly outside of protected areas. Ongoing habitat conversion for small-scale agriculture, as well as recurring forest fires, may reduce both the extent and quality of suitable habitat over time. Continued monitoring is essential to assess population trends, better understand the degree of fragmentation, and evaluate future conservation needs.
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. Sumba Warbling-flycatcher is recommended to be listed as Near Threatened, approaching thresholds under Criteria B1ab(iii)+2ab(iii).
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.
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
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.
Based on data compiled by our team at the Sumba Programme of Burung Indonesia, this species has been confirmed from at least nine locations that are geographically dispersed across the island. The data are derived from a combination of occurrence records sourced from eBird and consultations with the monitoring team of the Manupeu Tanahdaru–Laiwangi Wanggameti National Park Authority.
The nine confirmed locations include:
Pamatimakarewa Forest (119.552819, -9.710452)
Langgaliru Forest (119.831187, -9.661702)
Tarimbang Forest (119.931603, -9.945348)
Manupeu Tanahdaru Forest (119.697571, -9.630205)
Praing Kareha Forest (120.062198, -10.034541)
Billa Forest (120.212089, -9.977847)
Wula Waijelu Forest (120.609683, -10.2216)
Lumbukore (120.664124, -9.886462)
Konda Maloba Forest (119.691029, -9.753756)
These locations are relatively distant from one another and, in many cases, situated in distinct forest fragments. This spatial pattern suggests that the population is relatively fragmented, and possibly biologically fragmented as well, which may have implications for gene flow and long-term population viability.
Reliable estimates of population density or abundance are not currently available due to the limited scope and frequency of systematic surveys. However, based on interviews with local communities and discussions with the national park monitoring team, the species is described as infrequently encountered, and can therefore be considered uncommon.
There is currently no evidence that this species is a primary target for bird poaching or trade. We have found no records of the species in bird markets, on social media, or in reports from the national park monitoring team. Accordingly, we do not consider trapping or trade to be a significant current threat to this species.
The primary threat is more likely related to habitat loss or degradation, particularly outside of protected areas. Ongoing habitat conversion for small-scale agriculture, as well as recurring forest fires, may reduce both the extent and quality of suitable habitat over time. Continued monitoring is essential to assess population trends, better understand the degree of fragmentation, and evaluate future conservation needs.
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. Sumba Warbling-flycatcher is recommended to be listed as Near Threatened, approaching thresholds under Criteria B1ab(iii)+2ab(iii).
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.