Sierra Madre Ground-Warbler
Robsonius thompsoni Hosner, Boggess, Alviola, Sánchez-González, Oliveros, Urriza & Moyle, 2013
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.

Robsonius thompsoni distribution map, based on http://datazone.birdlife.org/species/factsheet/Sierra-Madre-Ground-Warbler
Haller1962 · CC BY-SA 4.0 · Image sourceProvider-generated thumbnail requested at 800 pixels; no local editing Local WebP display rendition; resized without cropping.
Open encyclopedia reference
The Sierra Madre ground warbler (Robsonius thompsoni) is a species of passerine bird in the family Locustellidae. It is endemic to the island of Luzon in the Philippines, where it is found in the northeastern and eastern foothills of the Sierra Madre. Its habitat is in tropical moist lowland and the lower reaches of tropical montane forest. It was formerly conspecific and forms a species complex with the Cordillera ground warbler and Bicol ground warbler, which are some of most elusive birds in the country due to their extremely shy nature. While not officially threatened, its population is said to be declining due to habitat destruction through deforestation.
Wikipedia contributors, Sierra Madre ground warbler; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T11:53:25.720869+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Robsonius thompsoni Hosner, Boggess, Alviola, Sánchez-González, Oliveros, Urriza & Moyle, 2013
- Name authority
- Hosner, Boggess, Alviola, Sánchez-González, Oliveros, Urriza & Moyle, 2013
- Common name
- Sierra Madre Ground-Warbler
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Aves
- Order
- Passeriformes
- Family
- Locustellidae
- Genus
- Robsonius
- Extinction status
- Recorded extant
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classAves
- orderPasseriformes
- familyLocustellidae Bonaparte, 1875
- genusRobsonius Collar, 2006
- speciesRobsonius thompsoni Hosner, Boggess, Alviola, Sánchez-González, Oliveros, Urriza & Moyle, 2013
Close classified relatives
These entries share the source’s genus, Robsonius. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Rabor's Wren-BabblerRobsonius rabori (Rand, 1960) | LocustellidaeChordata | Accepted speciesRecorded extant |
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- Hosner, Peter A., Nikki C. Boggess, Phillip Alviola, Luis A. Sánchez-González, et al. (2013). Phylogeography of the Robsonius Ground-Warblers (Passeriformes: Locustellidae) Reveals an Undescribed Species from Northeastern Luzon, Philippines. The Condor, Vol. 115, No. 3. Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:4T89V. Classification follows source parent identifiers. English common names may vary by region.