Plain Antvireo

dysithamnus mentalis

Thamnophilidae · Antbirds, Antwrens

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

The account

Description

11 cm. Male's upper parts are grayish olive with an blackish mask. Wings olive-black with two narrow white wing bands. Throat whitish. Below whitish-gray, the belly whitish.

Female's crown and wings are rufous-brown. Auriculars dusky-brown. Otherwise olive-brown above. Below a lighter gray-olive, the belly yellow.

Male Disc 3 · 2006
Female Disc 3 · 2006

Each plate is labelled with the disc's own caption.

Where it was recorded

The discs' own checklists select Plain Antvireo at 26 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.

Barreiro Rico BRSB
Boraceia BOSB
Fazenda Campininha FZSB
Fazenda Intervales FASB
Fazenda Paraiso PASB
Ilha do Cardoso ILSB
Ilha São Sebastião SSSB
Itirapina ITSB
Jureia-Peruibe JUSB position not recoverable
Lencois LESB
Marica MRRB
Morro do Diabo MOSB outside the map
Nucleo Sta. Virginia NUSP
Parati PARB
Pariquera-Abaixo PESB
PE Carlos Botelho PCSB
PE Jacupiranga PJSB
Reserva Ecológica Guapiacú RERB
Rio de Janeiro RIRB
Serra Bocaina SESB
Serra da Cantareira SRSB
Serra dos Orgãos SRRB
Serra dos Tucanos SDTC
Sete Barras STSB
Ubatuba UBSB
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

Song a sequence of notes starting of very slowly and accelerating increasingly towards the end 'tuep tuep tuep tuep tuep tu tu tutututu'. Cut #1 demonstrates first the song of Dysithamnus stictothorax, which starts out much faster, followed by the song of this species.

Behavior

Slowly moves about, usually in pairs, in low scrub and undergrowth of forest.

Habitat and status

A common antvireo of humid forest. Frequently encountered in lower stratum of humid primary and secondary forest and borders. Sea level to about 1000 meters.

Distribution

Throughout. Especially common near Ubatuba and Parati. Occurs further inland, e. g. at Ibitipoca and Reserva Rio Doçe, Minas Gerais where Dysithamnus stictothorax is not found.

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

Song. Picinguaba, east of Ubatuba, 11/20/98. Cloudy, 20°C. Secondary forest. With Dysithamnus stictothorax, Drymophila ferruginea, Basileuterus rivularis(song). Dysithamnus stictothorax and Dysithamnus mentalis are foraging in the same flock and the songs of the two species can be easily differentiated.
Calls. Jureia-Peruibe, 10/13/99. Sunny, 20°C. Forest.
Song. Cananeia, 10/12/99. Cloudy, 20°C. Forest. With Pionus maximiliani, Crypturellus noctivagus.
Song. Cananeia, 10/12/99. Cloudy, 20°C. Forest. With Turdus rufiventris, Trogon viridis, Crypturellus noctivagus.
Song. Cornell Cat#81459. With Momotus momota, Corythopsis delalandi, 7/7/87, Ilha do Bananal, Goias. Recording by P. K. Donahue.
Calls. Cornell Cat#19298. Santo Cristo, Rio Grande do Sul, 1/22/73. With Synallaxis ruficapilla. Recording by W. Belton.

Recording files on the disc

2209.mp3 Song. Picinguaba, east of Ubatuba, 11/20/98. Cloudy, 20°C. Secondary forest. With Dysithamnus stictothorax, Drymophila ferruginea, Basileuterus rivularis(song). Dysithamnus stictothorax and Dysithamnus mentalis are foraging in the same flock and the songs of the two species can be easily differentiated.
9599.wav Calls. Jureia-Peruibe, 10/13/99. Sunny, 20°C. Forest.
3832.wav Song. Cananeia, 10/12/99. Cloudy, 20°C. Forest. With Pionus maximiliani, Crypturellus noctivagus.
3191.wav Song. Cananeia, 10/12/99. Cloudy, 20°C. Forest. With Turdus rufiventris, Trogon viridis, Crypturellus noctivagus.
5261.wav Song. Cornell Cat#81459. With Momotus momota, Corythopsis delalandi, 7/7/87, Ilha do Bananal, Goias. Recording by P. K. Donahue.
15188.wav Calls. Cornell Cat#19298. Santo Cristo, Rio Grande do Sul, 1/22/73. With Synallaxis ruficapilla. 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.

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	dysithamnus mentalis	Plain Antvireo	Thamnophilidae
CLEMENTS	dysithamnus mentalis	Plain Antvireo	Thamnophilidae
AOU_HM	dysithamnus mentalis	Plain Antvireo	Thamnophilidae

Source details

Identifier on this site: seb_species_0120
Account identifier: seb_account_0120
Account number on the disc: 120
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative