Barred Antshrike

thamnophilus doliatus

Thamnophilidae · Antbirds, Antwrens

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

The account

Description

15 cm. Male has a solid black crest. Iris yellow. Back barred white on black. Throat narrowly striped black on white. Below white, narrowly barred black.

Female is also crested with a rusty unstriped crown . Above rusty-cinnamon. Throat whitish. Cheeks and nape striped blackish. Below buff-yellow.

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

Where it was recorded

The discs' own checklists select Barred Antshrike at 8 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

Song is a series of nasal accelerating notes 'na na na na na na nananana aah' with a strong emphasis on the last note. Calls of growling and guttural notes (⁴⁴), also a 'di-oo' (³⁰). The song can also be heard on the CD ³⁸

Behavior

Pairs forage low in thickets and scrub, sometimes appearing on top or outside of a bush.

Habitat and status

Inhabits thickets and forest borders, caatinga and swamp land.

Distribution

Inland in Estado São Paulo (e.g. Itirapina, Jaboticabal, São Jeronymo, Rio Tietê), Minas Gerais and Rio de Janeiro (rare in the Serra Mantiqueira). Not found close to the coast. A historical recording exists from the Serra dos Orgãos (¹⁵).

Taxonomy notes

The common antshrike of the interior.

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. Itirapina 10/10/97. Cloudy, 28°C. Open scrub. With Rhynchotus rufescens.

Recording files on the disc

698.wav Song. Itirapina 10/10/97. Cloudy, 28°C. Open scrub. With Rhynchotus rufescens.

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	thamnophilus doliatus	Barred Antshrike	Thamnophilidae
CLEMENTS	thamnophilus doliatus	Barred Antshrike	Thamnophilidae
AOU_HM	thamnophilus doliatus	Barred Antshrike	Thamnophilidae

Source details

Identifier on this site: seb_species_0112
Account identifier: seb_account_0112
Account number on the disc: 112
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative