Yellow Tyrannulet

Capsiempis flaveola

Tyrannidae,Elaeninae · Tyrannulets

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

The account

Description

11.5 cm. A robust greenish-yellow tyrannulet of shrubby borders and swamp land. Bill black and slender. Light olive-green above with a yellow superciliary stripe. Wings dusky-black with two broad yellow wing bars. Below bright yellow.

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

Where it was recorded

The discs' own checklists select Yellow Tyrannulet at 12 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.

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

Call is a deep burry trill 'turrrrrrrrrr' and also a 'wuit wuitwuit', 'wutwutwut', 'witu witu witu...' and other variations. The duet is a protracted warble consisting of trills and 'wuit' notes, reminiscent of Phyllomyias fasciatus duets.

Behavior

Forages low in bushes and scrub in pairs or small groups. A upward-hover gleaner.

Breeding

Builds a cup nest (⁴⁴).

Habitat and status

Occurs in open bushy forest, gallery woodland and forest border and bushy swamp land.

Distribution

Throughout, up to 1300 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

Calls. Pirapora, 11/12/98. Cloudy, 25°C. Scrub, gallery forest. With Synallaxis frontalis.
Call. Pereque, near Angra dos Reis, 10/16/99. Sunny, 30°C. Open scrub. With Formicivora erythronotos
Duet. Picinguaba, east of Ubatuba, 10/15/99. Sunny, 27°C. Secondary brush. With Drymophila ferruginea, Terenura maculata
Song?, calls. Cornell Cat#19310. Turvo Forest Reserve, Rio Grande do Sul, 11/25/77. With Tachyphonus coronatus. Recording by W. Belton.
Song, call. Cornell Cat#19313. Turvo Forest Reserve, Rio Grande do Sul, 11/26/77. With Turdus rufiventris, Drymophila ferruginea. Recording by W. Belton.

Recording files on the disc

1423.mp3 Calls. Pirapora, 11/12/98. Cloudy, 25°C. Scrub, gallery forest. With Synallaxis frontalis.
5947.wav Call. Pereque, near Angra dos Reis, 10/16/99. Sunny, 30°C. Open scrub. With Formicivora erythronotos
14034.wav Duet. Picinguaba, east of Ubatuba, 10/15/99. Sunny, 27°C. Secondary brush. With Drymophila ferruginea, Terenura maculata
3051.wav Song?, calls. Cornell Cat#19310. Turvo Forest Reserve, Rio Grande do Sul, 11/25/77. With Tachyphonus coronatus. Recording by W. Belton.
12940.wav Song, call. Cornell Cat#19313. Turvo Forest Reserve, Rio Grande do Sul, 11/26/77. With Turdus rufiventris, Drymophila ferruginea. Recording by W. Belton.

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.

Names by release

Yellow Tyrannulet Capsiempis flaveolus Disc 2 · 2001
Yellow Tyrannulet Capsiempis flaveola Disc 3 · 2006, Disc 1 · 2011

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	Capsiempis flaveola	Yellow Tyrannulet	Tyrannidae,Elaeninae
CLEMENTS	Capsiempis flaveola	Yellow Tyrannulet	Tyrannidae,Elaeninae
AOU_HM	Capsiempis flaveola	Yellow Tyrannulet	Tyrannidae,Elaeninae

Source details

Identifier on this site: seb_species_0189
Account identifier: seb_account_0189
Account number on the disc: 189
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative