Southern Bristle-Tyrant
phylloscartes eximius
Tyrannidae,Elaeninae · Tyrannulets
- Disc 2 · 2001 listed
- Disc 3 · 2006 listed
- Disc 1 · 2011 listed
The account
Description
10 cm. This "Bristle-Tyrant" (Pogonotriccus) has a shorter tail than typical Phylloscartes flycatchers, sits upright and seems to regularly show upward-hover gleaning foraging behavior.
Above olive-green. Crown is gray with an olive center. A white broad superciliary stripe and black lores. Cheeks light yellowish, grizzled with gray. Wings grayish-black with two inconspicuous and narrow olive wing bars. Below greenish-yellow with a bright yellow belly.
Tolmomyias sulphurescens is sometimes thought to be this species by the unexperienced, but its small size, different habitat, behavior and its general rareness should make it easy to differentiate both species.
Juveniles have a duller, more uniform plumage and resemble Phylloscartes paulistus (75).
-
Dry secondary rainforest. At 900 meters in the Serra Cantareira. Biome of Phylloscartes eximius. Disc 3 · 2006
Where it was recorded
The discs' own checklists select Southern Bristle-Tyrant at 4 localities.
- Boraceia BOSB
- Reserva Ecológica Guapiacú RERB
- Serra da Cantareira SRSB
- Serra dos Tucanos SDTC
How the map was made
The original program computed each red dot at display time from the locality's coordinates, using its map library and one of five base maps drawn for the screen widths of the day. That library's projection — an oblique rotation of the sphere about the map's own centre, 23.7°S 47.4°W — was read from the program and checked against the graticule the same program drew into the base maps: it reproduces every grid intersection to within about a pixel. The dots here use that projection on the 1280-pixel base map, with the coordinates the discs record. Nothing was placed by hand, no modern map data was used, and a place whose coordinate is incomplete, out of range or beyond the map's edge is listed rather than guessed.
The discs carried location maps only; none shows a distribution or range.
The account, continued
Voice
Gives a high trill consisting of 8-15 single notes, sometimes increasing in pitch, but always appearing to end abruptly.
Behavior
An unobtrusive inhabitant of the middle and lower stratum in the forest interior. Sits upright and seems to perform as much upward-hover gleaning as upward striking. Found in pairs and does not follow mixed bird parties.
Habitat and status
Very rare in dense dryer secondary and primary forests of the altiplano. Not found in the wetter coastal forests or on the slopes of the coastal escarpment. Luis Fabio Silveira and colleagues have found several pairs in recent years in the Serra da Cantareira within the city limits of São Paulo.
Distribution
Widely distributed inland from Espirito Santo and Minas Gerais to Mato Grosso do Sul and Rio Grande do Sul, but it occurs very rarely in southeast Brazil due to deforestation and was only recently rediscovered in the Serra da Cantareira in São Paulo. Accidental in the Serra do Mar and historic recordings from the Serra Mantiqueira and Serra dos Orgãos (74). To be looked for in dense dryer taller forests of the altiplano, maybe in the Boraceia Reserve, on hill tops and in less accessible area such as ravines.
Taxonomy notes
On the basis of morphological criteria this species was placed in the genus Pogonotriccus, the Bristle-Tyrants, separate from Phylloscartes. (84,117). However, Traylor and Lanyon combined these genera into the genus Phylloscartes (85, 86). We note here however that the species has a completely different behavior and foraging style than typical Phylloscartes flycatchers with their gnat-catcher like appearance and behavior. Clay et al. came to a similar conclusion (75).
Decoded from the disc's own bytes. Each part is shown under the heading the disc files it under, and the wording, spelling and punctuation are the author's.
Vocalizations
-
Calls. Serra da Cantareira, São Paulo city, 09/99. Secondary forest.
-
Song. Cornell Cat#57878. Poco Preto trail, Parque Nacional de Iguazu, Parana, 8/16/90. With Dromococcyx pavoninus, Corythopis delalandi. Recording by D.W. Finch.
Recording files on the disc
- 6723.wav Calls. Serra da Cantareira, São Paulo city, 09/99. Secondary forest.
- 2302.wav Song. Cornell Cat#57878. Poco Preto trail, Parque Nacional de Iguazu, Parana, 8/16/90. With Dromococcyx pavoninus, Corythopis delalandi. Recording by D.W. Finch.
More images
The disc records this picture against the bird without a caption. Disc 3 · 2006 The disc records this picture against the bird without a caption. Disc 1 · 2011
Across the three discs
The work was published on three discs — Disc 2 in 2001, Disc 3 in 2006 and Disc 1 in 2011. Where they differ, that is a difference between historical releases, and it is never merged away. The 2011 disc is not treated as correcting the earlier ones.
Which discs list this bird
- Disc 2 · 2001 — in this disc's bird list
- Disc 3 · 2006 — in this disc's bird list
- Disc 1 · 2011 — in this disc's bird list
How that was established
- Disc 2 · 2001
aux_nonzero;local_checklist_byte45_flag_1- Disc 3 · 2006
aux_nonzero;local_checklist_byte45_flag_1- Disc 1 · 2011
aux_nonzero;local_checklist_byte45_flag_1
The disc's own record fields that place the bird on its list: a non-empty entry in the species table, and the byte that marks it as selected on a local checklist.
The account in the Disc 1 · 2011 revision
In the 2011 Disc 1 revision, part of this account was truncated at exactly 512 bytes (a 2011 mastering defect). The earlier releases preserve the complete text.
Truncated sections in the 2011 revision: description; distribution. The complete earlier text is shown beneath each truncated section.
Description Disc 1 · 2011
10 cm. This "Bristle-Tyrant" (Pogonotriccus) has a shorter tail than typical Phylloscartes flycatchers, sits upright and seems to regularly show upward-hover gleaning foraging behavior.
Above olive-green. Crown is gray with an olive center. A white broad superciliary stripe and black lores. Cheeks light yellowish, grizzled with gray. Wings grayish-black with two inconspicuous and narrow olive wing bars. Below greenish-yellow with a bright yellow belly.
Tolmomyias sulphurescens is sometimes thought to
Disc 1 (2011) text ends here — truncated at exactly 512 bytes in the 2011 mastering (historical defect, kept as recovered).
Complete earlier text — Disc 3 · 2006 (256 bytes lost in 2011)
10 cm. This "Bristle-Tyrant" (Pogonotriccus) has a shorter tail than typical Phylloscartes flycatchers, sits upright and seems to regularly show upward-hover gleaning foraging behavior.
Above olive-green. Crown is gray with an olive center. A white broad superciliary stripe and black lores. Cheeks light yellowish, grizzled with gray. Wings grayish-black with two inconspicuous and narrow olive wing bars. Below greenish-yellow with a bright yellow belly.
Tolmomyias sulphurescens is sometimes thought to be this species by the unexperienced, but its small size, different habitat, behavior and its general rareness should make it easy to differentiate both species.
Juveniles have a duller, more uniform plumage and resemble Phylloscartes paulistus (75).
Shown for comparison from the Disc 3 · 2006; it does not repair or replace the Disc 1 · 2011 historical text above.
Voice Disc 1 · 2011
Gives a high trill consisting of 8-15 single notes, sometimes increasing in pitch, but always appearing to end abruptly.
Behavior Disc 1 · 2011
An unobtrusive inhabitant of the middle and lower stratum in the forest interior. Sits upright and seems to perform as much upward-hover gleaning as upward striking. Found in pairs and does not follow mixed bird parties.
Habitat and status Disc 1 · 2011
Very rare in dense dryer secondary and primary forests of the altiplano. Not found in the wetter coastal forests or on the slopes of the coastal escarpment. Luis Fabio Silveira and colleagues have found several pairs in recent years in the Serra da Cantareira within the city limits of São Paulo.
Distribution Disc 1 · 2011
Widely distributed inland from Espirito Santo and Minas Gerais to Mato Grosso do Sul and Rio Grande do Sul, but it occurs very rarely in southeast Brazil due to deforestation and was only recently rediscovered in the Serra da Cantareira in São Paulo. Accidental in the Serra do Mar and historic recordings from the Serra Mantiqueira and Serra dos Orgãos (74). To be looked for in dense dryer taller forests of the altiplano, maybe in the Boraceia Reserve, on hill tops and in less accessible area such as ravine
Disc 1 (2011) text ends here — truncated at exactly 512 bytes in the 2011 mastering (historical defect, kept as recovered).
Complete earlier text — Disc 3 · 2006 (2 bytes lost in 2011)
Widely distributed inland from Espirito Santo and Minas Gerais to Mato Grosso do Sul and Rio Grande do Sul, but it occurs very rarely in southeast Brazil due to deforestation and was only recently rediscovered in the Serra da Cantareira in São Paulo. Accidental in the Serra do Mar and historic recordings from the Serra Mantiqueira and Serra dos Orgãos (74). To be looked for in dense dryer taller forests of the altiplano, maybe in the Boraceia Reserve, on hill tops and in less accessible area such as ravines.
Shown for comparison from the Disc 3 · 2006; it does not repair or replace the Disc 1 · 2011 historical text above.
Taxonomy notes Disc 1 · 2011
On the basis of morphological criteria this species was placed in the genus Pogonotriccus, the Bristle-Tyrants, separate from Phylloscartes. (84,117). However, Traylor and Lanyon combined these genera into the genus Phylloscartes (85, 86). We note here however that the species has a completely different behavior and foraging style than typical Phylloscartes flycatchers with their gnat-catcher like appearance and behavior. Clay et al. came to a similar conclusion (75).
The work's own taxonomy
The discs carried three parallel name schemes. All three are shown as recovered; none is a modern taxonomy and none has been updated.
| Scheme | Scientific name | English name | Family |
|---|---|---|---|
| WORLD | phylloscartes eximius | Southern Bristle-Tyrant | Tyrannidae,Elaeninae |
| CLEMENTS | phylloscartes eximius | Southern Bristle-Tyrant | Tyrannidae,Elaeninae |
| AOU_HM | phylloscartes eximius | Southern Bristle-Tyrant | Tyrannidae,Elaeninae |
Open questions about this bird
Recovered evidence that has not been settled. It is published because leaving it out would misrepresent what the discs contain.
References that could not be resolved
PHLEX1 — Historical visual reference: PHLEX1. No surviving asset has been resolved. (missing_typed_reference)
Review notes
review_0008
Recovered review record — open: Moved one terminal visual segment from account 205 to account 204.
Evidence: A19 is an image/biome entry naming Phylloscartes eximius, the scientific identity of account 204. · Recommended: Confirm visually against the original program or field notes when available; retain correction unless contradicted.
Review v1.1 decision — accepted_provisionally
Reviewer: ChatGPT structural audit
Notes: The correction is strongly supported by account grammar, checklist order, species-name evidence, and media-segment placement. Retain in the working dataset; optional confirmation against the original program or field notes remains.
Source details
- Identifier on this site
- seb_species_0204
- Account identifier
- seb_account_0204
- Account number on the disc
- 204
- Source edition
- CD03 / 2006 package
- Original taxonomy scheme
- WORLD
- Species boundary note
- Boundary audited with account 205; one segment reassigned.
- Account boundary note
- Boundary audited with account 205; one segment reassigned.
- Structure status
- heuristic; decoded_account_text and segment JSON remain authoritative