Bay-ringed Tyrannulet

phylloscartes sylviolus

Tyrannidae,Elaeninae · Tyrannulets

  • 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 Bay-ringed Tyrannulet at 8 localities.

The disc's own area map with 7 of Bay-ringed Tyrannulet's checklist localities marked Angra dos Reis Fazenda Intervales Parati PE Jacupiranga Reserva Ecológica Guapiacú Sete Barras Ubatuba
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

  • Calls, song? Fazenda Capricornio near Ubatuba, 11/21/98. Cloudy, light rain, 20°C. Forest border. With Pyriglena leucoptera, Legatus leucophaius.
  • Calls, song. 10/15/99, Corisco trail, Picinguaba, east of Ubatuba, near nest. Sunny, 30°C. Primary forest. With Procnias nudicollis, Saltator fuliginosus.
  • Calls. Cornell Cat#34045. Iguazu Falls, Parana, 10/27/84. Recording by T. A. Parker, III.
  • Call. Cornell Cat#32107. Iguassu Falls, Misiones, Argentina, 11/17/82. Recording by T. A. Parker, III.
  • Calls. Cruce Caballero Provincial Park, Misiones, Argentina, 4/97. Recording by Juan Mazar Barnett
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

Recordings and images first listed on Disc 1 · 2011

Individual near nest, Corisco Trail, Pisinguaba, 10/15/99. Disc 1 · 2011

No corresponding file survives on any preserved disc. The historical entry above is retained as metadata.

Disc file 7872

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 phylloscartes sylviolus Bay-ringed Tyrannulet Tyrannidae,Elaeninae
CLEMENTS phylloscartes sylviolus Bay-ringed Tyrannulet Tyrannidae,Elaeninae
AOU_HM phylloscartes sylviolus Bay-ringed Tyrannulet Tyrannidae,Elaeninae
Source details
Identifier on this site
seb_species_0210
Account identifier
seb_account_0210
Account number on the disc
210
Source edition
CD03 / 2006 package
Original taxonomy scheme
WORLD
Structure status
heuristic; decoded_account_text and segment JSON remain authoritative