Mottle-cheeked Tyrannulet

phylloscartes ventralis

Tyrannidae,Elaeninae · Tyrannulets

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

The account

Description

12 cm. Greenish overall. Long tailed and gnatcatcher-like. Above bright olive-green with a white superciliary stripe and eye ring. Grayish mottling of cheeks and dark grey stripe through eye. Dark gray wings with two yellowish wing bands and margins of the flight feathers. Throat white. Below pale whitish-yellow, the breast washed with buffy green.

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

Where it was recorded

The discs' own checklists select Mottle-cheeked Tyrannulet at 16 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 has no usable coordinate and is listed below unplotted.

Boraceia BOSB
Campos do Jordão CASB
Fazenda Paraiso PASB
Jureia-Peruibe JUSB position not recoverable
Nucleo Sta. Virginia NUSP
Parati PARB
Pariquera-Abaixo PESB
PE Carlos Botelho PCSB
PE Jacupiranga PJSB
Reserva Ecológica Guapiacú RERB
Serra Bocaina SESB
Serra da Cantareira SRSB
Serra dos Orgãos SRRB
Serra dos Tucanos SDTC
Sete Barras STSB
Ubatuba UBSB

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

Song is a 'tik-tik-chichichichichichi', not descending in pitch like the song of Phyllomyias virescens which occasionally occurs in the same habitat, but becoming more emphasized and somewhat slower toward the end (cut #1). Calls, a hard 'chik' or 'chipit'. Similar vocalizations are described in Clay (¹⁴).

Behavior

Forages by rapidly moving about in the canopy of humid forest and crowns of scattered trees at woodland borders. Prey is captured mainly by rapid upward striking from a location underneath the prey (⁷⁴).

Habitat and status

Not uncommon in the canopy of humid secondary and primary forest and borders in the highlands. Also sometimes in lower scrub and in the crowns of free standing trees.

Distribution

Throughout (Serra do Mar, Serra Mantiqueira, Serra dos Orgãos). Usually 700-1900 meters (e. g. in the Serra Mantiqueira).

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 or song. Cornell Cat#34016. São Francisco de Paula, Rio Grande de Sul, 10/22/84. Recording by T. A. Parker, III.
Call. Cornell Cat#18065. Ingenio, Amazonas, Peru, 8/12/76. Recording by J. P. O'Neill.
Call, song. Cruce Caballero Provincial Park, Misiones, Arg. 5/97. Recording by Juan Mazar Barnett

Recording files on the disc

1742.wav Call or song. Cornell Cat#34016. São Francisco de Paula, Rio Grande de Sul, 10/22/84. Recording by T. A. Parker, III.
7752.wav Call. Cornell Cat#18065. Ingenio, Amazonas, Peru, 8/12/76. Recording by J. P. O'Neill.
15804.mp3 Call, song. Cruce Caballero Provincial Park, Misiones, Arg. 5/97. Recording by Juan Mazar Barnett

More images

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

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	phylloscartes ventralis	Mottle-cheeked Tyrannulet	Tyrannidae,Elaeninae
CLEMENTS	phylloscartes ventralis	Mottle-cheeked Tyrannulet	Tyrannidae,Elaeninae
AOU_HM	phylloscartes ventralis	Mottle-cheeked Tyrannulet	Tyrannidae,Elaeninae

Source details

Identifier on this site: seb_species_0209
Account identifier: seb_account_0209
Account number on the disc: 209
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative