Long-tailed Tyrant

colonia colonus

Tyrannidae,Fluvicolinae · Fluvicoline Flycatchers

Disc 2 · 2001 listed
Disc 3 · 2006 listed
Disc 1 · 2011 listed

The account

Description

12 cm + tail. An unmistakable black flycatcher with a white superciliary stripe and crown. The central pair of the tail feathers is about 12cm longer than the other tail feathers.

Females and young birds have a grayish belly and less white on crown and young birds lack the elongated central tail feathers.

The disc records this picture against the bird without a caption. Disc 3 · 2006

Where it was recorded

The discs' own checklists select Long-tailed Tyrant at 19 localities.

Historical checklist localities on the disc's own area map — the red dots the original program drew, placed by its recovered projection. Not a range map: it shows the places whose checklists record the bird, nothing more. 1 recorded locality lies beyond the map's edge and is listed below instead.1 has no usable coordinate and is listed below unplotted.

Angra dos Reis ANRB
Barreiro Rico BRSB
Fazenda Intervales FASB
Fazenda Paraiso PASB
Ilha do Cardoso ILSB
Ilha São Sebastião SSSB
Itirapina ITSB
Jureia-Peruibe JUSB position not recoverable
Lencois LESB
Morro do Diabo MOSB outside the map
Nucleo Sta. Virginia NUSP
Parati PARB
PE Jacupiranga PJSB
Reserva Ecológica Guapiacú RERB
Rio de Janeiro RIRB
Serra da Cantareira SRSB
Serra dos Orgãos SRRB
Serra dos Tucanos SDTC
Vassununga VASB

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.

Voice

Calls are a breezy 'wiee' or 'wiu', 'duwiii', and a 'wi-didiwi', all very distinctive.

Behavior

Forages by employing aerial hawks from dead branches or tree tops usually high in the canopy.

Habitat and status

Relatively common in pairs in canopy of mature secondary and primary forest. Frequently also at borders and close to clearings

Distribution

Throughout. Serra Mantiqueira, Serra dos Orgãos, Serra do Mar, Fazenda Intervales to PE Jacupiranga, Iguape and Cananeia. Below 1000 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

Call. Pirapora, 11/12/98. Cloudy, 25°C. Gallery forest. With Synallaxis frontalis, Pitangus sulphuratus.
Calls. Serra da Mantiqueira, above Hotel do Ype, 1600 meters, 10/18/99. Cloudy, foggy with showers, 23°C. Primary forest. With Pionopsitta pileata.
Calls. Cornell Cat#11045. Tingo Maria-Divisora Mountains, Huanuco, Peru, 11/3/79. With Columba plumbea. Recording by T. A. Parker, III.
Song. Cornell Cat#82275. Hacienda Amazonica, Madre de Dios, Peru, 8/13/87, With Cyanocorax sp., Recording by P. K. Donahue.

Recording files on the disc

13584.mp3 Call. Pirapora, 11/12/98. Cloudy, 25°C. Gallery forest. With Synallaxis frontalis, Pitangus sulphuratus.
12738.wav Calls. Serra da Mantiqueira, above Hotel do Ype, 1600 meters, 10/18/99. Cloudy, foggy with showers, 23°C. Primary forest. With Pionopsitta pileata.
6567.wav Calls. Cornell Cat#11045. Tingo Maria-Divisora Mountains, Huanuco, Peru, 11/3/79. With Columba plumbea. Recording by T. A. Parker, III.
12102.mp3 Song. Cornell Cat#82275. Hacienda Amazonica, Madre de Dios, Peru, 8/13/87, With Cyanocorax sp., Recording by P. K. Donahue.

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	colonia colonus	Long-tailed Tyrant	Tyrannidae,Fluvicolinae
CLEMENTS	colonia colonus	Long-tailed Tyrant	Tyrannidae,Fluvicolinae
AOU_HM	colonia colonus	Long-tailed Tyrant	Tyrannidae,Fluvicolinae

Source details

Identifier on this site: seb_species_0265
Account identifier: seb_account_0265
Account number on the disc: 265
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative