Azure-shouldered Tanager

thraupis cyanoptera

Thraupidae · Tanagers, Honeycreepers

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

The account

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

Where it was recorded

The discs' own checklists select Azure-shouldered Tanager at 15 localities.

The disc's own area map with 14 of Azure-shouldered Tanager's checklist localities marked Boraceia Fazenda Intervales Ilha do Cardoso Ilha São Sebastião Nucleo Sta. Virginia Parati PE Carlos Botelho PE Jacupiranga Reserva Ecológica Guapiacú Rio de Janeiro Serra Bocaina Serra dos Orgãos Serra dos Tucanos Sete Barras
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 has no usable coordinate and is listed below unplotted.
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

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

  • Two songs, Boraceia, São Paulo, November 13, 1993, sunny, 27°C, open area within forest.
  • Song, Fazenda Capricornio, November 20, 1998, cloudy, 30°C, open forest.
  • Song, Ilha do Cardoso, São Paulo, November 24, 1997, some clouds, 25°C, brushy forest.
  • Song, Ilha do Cardoso, São Paulo, November 24, 1998, some clouds, 25°C, brushy forest.
  • Song, Ubatuba, São Paulo, November 18, 1998, sunny, 28°C, with Saltator fuliginosus, Merulaxis ater.
Recording files on the disc

More images

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

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 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.

SchemeScientific nameEnglish nameFamily
WORLD thraupis cyanoptera Azure-shouldered Tanager Thraupidae
CLEMENTS thraupis cyanoptera Azure-shouldered Tanager Thraupidae
AOU_HM thraupis cyanoptera Azure-shouldered Tanager Thraupidae

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.

Review notes

review_0002

Recovered review record — open: Merged adjacent 5+3 fragments into Azure-shouldered Tanager.

Evidence: The first fragment lacks terminal media; the second consists of the same taxon's remaining distribution/media fields. · 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_0392
Account identifier
seb_account_0392
Account number on the disc
392
Source edition
CD03 / 2006 package
Original taxonomy scheme
WORLD
Species boundary note
Recovered by merging malformed 5+3 fragments.
Account boundary note
Recovered by merging malformed 5+3 fragments.
Structure status
heuristic; decoded_account_text and segment JSON remain authoritative