Streak-capped Antwren

terenura maculata

Thamnophilidae · Antbirds, Antwrens

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

The account

Description

10 cm. Male head, throat and chest white, streaked blackish. Back chestnut-rufous. Black wings with two white bars. Belly yellowish. Tail black.

Female is similar to the male, but the white on head and chest is replaced by buff. Wing coverts olive-brown. Belly buff.

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 Streak-capped Antwren at 18 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.

Angra dos Reis ANRB
Barreiro Rico BRSB
Boraceia BOSB
Fazenda Intervales FASB
Fazenda Paraiso PASB
Ilha São Sebastião SSSB
Jureia-Peruibe JUSB position not recoverable
Marica MRRB
Nucleo Sta. Virginia NUSP
Parati PARB
PE Carlos Botelho PCSB
PE Jacupiranga PJSB
Reserva Ecológica Guapiacú RERB
Rio de Janeiro RIRB
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 a very high pitched 'zizizizizi-zi' (the last syllable emphasized), resembles the song of Ramphocaenus melanurus. Call a high pitched double syllable 'tikkee tikkee tikkee tikkee' or 'si dede sisisi'. Also a 'chip' note (Ridgely and Tudor).

Behavior

Forages in the canopy of tall trees, sometimes down to 2-3 meters, gleaning leaves of trees and lianas. Frequently in mixed bird parties.

Habitat and status

Fairly common in the canopy of primary and secondary rainforest. Numerous along the coast from Rio de Janeiro to Bertioga/Santos..

Distribution

Throughout, less common in the south. To 800 meters (⁴⁴).

Taxonomy notes

The only Terenura antwren in southeast Brazil.

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, song? Fazenda Capricornio near Ubatuba, 11/21/98. Cloudy, light rain, 20°C. Forest border. With Phyllomyias griseocapilla, Legatus leucophaius, Pachyramphus castaneus.
Song. Fazenda Capricornio near Ubatuba, 11/21/98. Cloudy, light rain, 20°C. Forest border.
Call. Jureia-Peruibe, 10/12/99. Cloudy, 22°C. Forest.
Calls. Jureia-Peruibe, 10/13/99. Sunny, 20°C. Forest.
Calls. Picinguaba, east of Ubatuba, 10/15/99. Sunny, 27°C. Forest.
Calls, 10/17/99, Fazenda Capricornio near Ubatuba, cloudy and rain, 77°F. Open woodland. With Phyllomyias griseocapilla, Basileuterus culicivorus.

Recording files on the disc

10522.wav Call, song? Fazenda Capricornio near Ubatuba, 11/21/98. Cloudy, light rain, 20°C. Forest border. With Phyllomyias griseocapilla, Legatus leucophaius, Pachyramphus castaneus.
2748.wav Song. Fazenda Capricornio near Ubatuba, 11/21/98. Cloudy, light rain, 20°C. Forest border.
10767.wav Call. Jureia-Peruibe, 10/12/99. Cloudy, 22°C. Forest.
10594.wav Calls. Jureia-Peruibe, 10/13/99. Sunny, 20°C. Forest.
5893.wav Calls. Picinguaba, east of Ubatuba, 10/15/99. Sunny, 27°C. Forest.
11122.mp3 Calls, 10/17/99, Fazenda Capricornio near Ubatuba, cloudy and rain, 77°F. Open woodland. With Phyllomyias griseocapilla, Basileuterus culicivorus.

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	terenura maculata	Streak-capped Antwren	Thamnophilidae
CLEMENTS	terenura maculata	Streak-capped Antwren	Thamnophilidae
AOU_HM	terenura maculata	Streak-capped Antwren	Thamnophilidae

Source details

Identifier on this site: seb_species_0144
Account identifier: seb_account_0144
Account number on the disc: 144
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative