White-crested Tyrannulet
serpophaga subcristata
Tyrannidae,Elaeninae · Tyrannulets
- Disc 2 · 2001 listed
- Disc 3 · 2006 listed
- Disc 1 · 2011 listed
The account
Description
10 cm. A neat little tyrant flycatcher of the uplands. Bill thin and black. head and neck olive-grayish with a white superciliary stripe and a characteristic semi-concealed white crest spot. Above olive-grayish. Wings blackish with two white wingbars. White throat. Below a grayish-white chest and white belly with a suffusion of yellow.
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The disc records this picture against the bird without a caption. Disc 3 · 2006
Where it was recorded
The discs' own checklists select White-crested Tyrannulet at 17 localities.
- Assis ASSB
- Barreiro Rico BRSB
- Boraceia BOSB
- Campos do Jordão CASB
- Fazenda Intervales FASB
- Ilha São Sebastião SSSB
- Itirapina ITSB
- Marica MRRB
- Nucleo Sta. Virginia NUSP
- Parati PARB
- Reserva Ecológica Guapiacú RERB
- Rio de Janeiro RIRB
- Santa Barbara do Rio Pardo SNSB
- Serra Bocaina SESB
- Serra da Cantareira SRSB
- Serra dos Orgãos SRRB
- 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
A series of high 'psee' sounds like 'pseeseeseeseeseeseeseesee...'. Song is a long series of high calls, like 'titititititititititittitititititi'.
Behavior
A perch gleaner in the canopy, but also lower. Forages very actively singly or in pairs.
Habitat and status
Not uncommon in open forest, Araucaria woods, forest border and gallery forest.
Distribution
Throughout, but I have not seen it close to the coast. Seems to be most common in the altiplano (700-2000 meters), the Serra do Mar and Serra Mantiqueira, but Pinto reports it at sea level from São Sebastião (1896, 40). Up to 2300 meters.
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
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Calls. Cornell Cat#20084. Canela, Morro pelado, Rio Grande do Sul, 11/17/79. Recording by W. Belton.
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Calls, song. Cornell Cat#22110. Itatiaia National Park, Rio de Janeiro, 10/29/80. Recording by T. A. Parker, III.
Recording files on the disc
- 11988.wav Calls. Cornell Cat#20084. Canela, Morro pelado, Rio Grande do Sul, 11/17/79. Recording by W. Belton.
- 3770.wav Calls, song. Cornell Cat#22110. Itatiaia National Park, Rio de Janeiro, 10/29/80. Recording by T. A. Parker, III.
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
The 2011 Disc 1 revision carries this account text unchanged from the Disc 3 release.
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 | serpophaga subcristata | White-crested Tyrannulet | Tyrannidae,Elaeninae |
| CLEMENTS | serpophaga subcristata | White-crested Tyrannulet | Tyrannidae,Elaeninae |
| AOU_HM | serpophaga subcristata | White-crested Tyrannulet | Tyrannidae,Elaeninae |
Source details
- Identifier on this site
- seb_species_0200
- Account identifier
- seb_account_0200
- Account number on the disc
- 200
- Source edition
- CD03 / 2006 package
- Original taxonomy scheme
- WORLD
- Structure status
- heuristic; decoded_account_text and segment JSON remain authoritative