Scaled Antbird

drymophila squamata

Thamnophilidae · Antbirds, Antwrens

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

The account

Description

11 cm. Male has a black crown and back with white spots and a broad white superciliary. Wings black with two white wing-bars. Throat, chest, and belly white with big black spotting. Tail black with obvious white cross-bands.

The female is similar to the male, but the flanks are buff and it is generally brown instead of black and buff instead of white, with exception of the throat, chest and belly which are white with fainter streaking.

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 Scaled Antbird 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 has no usable coordinate and is listed below unplotted.

Boraceia BOSB
Fazenda Intervales FASB
Jureia-Peruibe JUSB position not recoverable
Marica MRRB
Parati PARB
Pariquera-Abaixo PESB
PE Jacupiranga PJSB
Reserva Ecológica Guapiacú RERB
Rio de Janeiro RIRB
Serra dos Orgãos SRRB
Serra dos Tucanos SDTC
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 slow and high, a little bit squeaky 'seeeei seeei seeei seeeei', somewhat descending. A descending series of clear whistles ' di di du du du' or 'whit whit di dududu' (track #3) may also be a song. Calls a 'whit whit' or 'whit'.

Behavior

Hops around in lower growth of forest.

Habitat and status

Locally common in the lower growth of humid primary and secondary forest and forest borders. Prefers the forest interior and is not found in scrub away from forest.

Distribution

Throughout to 500 meters (Fazenda Intervales). A typical Atlantic forest species not found far away from the coast.

Taxonomy notes

An endemic southeast Brazilian Drymophila antbird typical of the coastal "Mata Atlantica".

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, 11/21/98. Cloudy, 20°C. Secondary forest. With Saltator fuliginosus.
Alarm call. Picinguaba, east of Ubatuba, 11/20/98. Cloudy, 20°C. Secondary forest.
Song. Jureia-Peruibe, 10/13/99. Sunny, 20°C. With Tinamus solitarius.
Call. Picinguaba, east of Ubatuba, 10/15/99. Sunny, 27°C. Forest border. With Attila rufus and Hypoedaleus guttatus.
Alarm call. Picinguaba, east of Ubatuba, 10/15/99. Sunny, 27°C. Forest border. With Herpsilochmus rufimarginatus.
First part-Song. Serra dos Orgãos, Rio de Janeiro (Recording by Juan Mazar Barnett). Second part-Warn calls. Picinguaba, east of Ubatuba, 10/15/99, 27°C. Secondary forest.

Recording files on the disc

13972.wav Song. Picinguaba, east of Ubatuba, 11/21/98. Cloudy, 20°C. Secondary forest. With Saltator fuliginosus.
15611.wav Alarm call. Picinguaba, east of Ubatuba, 11/20/98. Cloudy, 20°C. Secondary forest.
6225.wav Song. Jureia-Peruibe, 10/13/99. Sunny, 20°C. With Tinamus solitarius.
15971.wav Call. Picinguaba, east of Ubatuba, 10/15/99. Sunny, 27°C. Forest border. With Attila rufus and Hypoedaleus guttatus.
10447.wav Alarm call. Picinguaba, east of Ubatuba, 10/15/99. Sunny, 27°C. Forest border. With Herpsilochmus rufimarginatus.
12907.mp3 First part-Song. Serra dos Orgãos, Rio de Janeiro (Recording by Juan Mazar Barnett). Second part-Warn calls. Picinguaba, east of Ubatuba, 10/15/99, 27°C. Secondary forest.

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	drymophila squamata	Scaled Antbird	Thamnophilidae
CLEMENTS	drymophila squamata	Scaled Antbird	Thamnophilidae
AOU_HM	drymophila squamata	Scaled Antbird	Thamnophilidae

Source details

Identifier on this site: seb_species_0143
Account identifier: seb_account_0143
Account number on the disc: 143
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative