Data Zone
Taxonomic note
As part of their overhaul of the Locustellidae (see below) Alström et al. (2018) introduced the generic name Helopsaltes to cover the monophyletic group of Locustella warbler species ochotensis, pleskei, certhiola, pryeri, fasciolatus and amnicola (del Hoyo and Collar 2016, Handbook of the Birds of the World and BirdLife International 2022). They found no morphological diagnostic characters, but identified a clear difference in voice. Helopsaltes takes the masculine form, hence the previous listing as H. fasciolata was incorrect.
Before this genus change, Locustella fasciolata and L. amnicola (del Hoyo and Collar 2016) were previously treated as a single species, L. fasciolata, following AERC TAC (2003), Cramp et al. (1977-1994) and Sibley and Monroe (1990, 1993). Monotypic.
Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2022. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 7. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v7_Dec22.zip.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2024 | Least Concern | |
| 2016 | Least Concern | |
| 2012 | Not Recognised | |
| 2008 | Not Recognised | |
| 2004 | Not Recognised | |
| 2000 | Not Recognised | |
| 1994 | Not Recognised | |
| 1988 | Not Recognised |
| Migratory status | full migrant | Forest dependency | low |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 4,550,000 km2 | |
| Extent of Occurrence (non-breeding) | 3,930,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | stable | - | suspected | - |
| Generation length | 2.5 years | - | - | - |
Population justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| China (mainland) | extant | native | yes | |||
| Indonesia | extant | native | yes | |||
| Mongolia | extant | native | yes | |||
| Papua New Guinea | extant | native | yes | |||
| Philippines | extant | native | yes | |||
| Russia | extant | native | yes | |||
| Russia (Asian) | extant | native | yes | |||
| Russia (Central Asian) | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Russia (Asian) | Sayanski canyon of the Enisey river |
| Russia (Central Asian) | Kuznetsky Alatau Zapovednik |
| Russia (Central Asian) | Yel'tsovskaya |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | non-breeding |
| Forest | Temperate | suitable | breeding |
| Grassland | Temperate | suitable | breeding |
| Shrubland | Subtropical/Tropical Moist | suitable | non-breeding |
| Shrubland | Temperate | suitable | breeding |
| Wetlands (inland) | Permanent Rivers/Streams/Creeks (includes waterfalls) | suitable | breeding |
| Altitude | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Gray's Grasshopper-warbler Helopsaltes fasciolatus. Downloaded from
https://datazone.birdlife.org/species/factsheet/grays-grasshopper-warbler-helopsaltes-fasciolatus on 22/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 22/12/2024.