White-bibbed Antbird

myrmeciza loricata

Thamnophilidae · Antbirds, Antwrens

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

The account

Description

14 cm. Male is similar to the male of Myrmeciza squamosa, but with a wide white superciliary stripe and buff spots instead of white spots on the wing coverts. Sides of head and upper throat black and a diagnostic white bib below the upper throat extending onto the neck. Upper chest black, the feathers rimmed with white giving it a scaly appearance. Belly white.

Female is like the male, but from chin to crissum ochraceous-buff to whitish buff. Flanks light brown.

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

Where it was recorded

The discs' own checklists select White-bibbed Antbird 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.

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

Call is a series of 'zick' sounds identical to those of Myrmeciza squamosa. The song is also similar to that of squamosa but missing the two-syllable effect of the song of that species, more like a fast 'si-si-si-si-si-si-si'(cut #2).

Behavior

Hops on the ground or climbs close to the ground in the interior of dense forest.

Habitat and status

Locally common in the shady interior of secondary and primary rain forest.

Distribution

From Serra Mantiqueira and Serra dos Orgãos northeast into Estado São Paulo and s. Bahia. There may be some overlap of loricata with squamosa in s. Estado Rio de Janeiro and northeast Estado São Paulo. e.g. at Serra Bocaina, but apparently no intergradation occurs . From 700-1300 meters.

Taxonomy notes

Ridgely and Tudor consider this species different from Myrmeciza squamosa (⁴⁴).

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. Cornell Cat#22083, 10/25/80, Nova Lombardia, Espirito Santo. Recording by T. A. Parker, III.
Song. Cornell Cat#32065. With Attila rufus, Columba plumbea, 11/13/82, Itatiaia National Park, Rio de Janeiro. Recording by T. A. Parker, III.
Call. Fazenda Intervales, Barra Grande road. 10/25/00. Cloudy, 20°C. Primary forest With Carpornis cucullatus.

Recording files on the disc

15195.wav Call. Cornell Cat#22083, 10/25/80, Nova Lombardia, Espirito Santo. Recording by T. A. Parker, III.
11237.wav Song. Cornell Cat#32065. With Attila rufus, Columba plumbea, 11/13/82, Itatiaia National Park, Rio de Janeiro. Recording by T. A. Parker, III.
7217.wav Call. Fazenda Intervales, Barra Grande road. 10/25/00. Cloudy, 20°C. Primary forest With Carpornis cucullatus.

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	myrmeciza loricata	White-bibbed Antbird	Thamnophilidae
CLEMENTS	myrmeciza loricata	White-bibbed Antbird	Thamnophilidae
AOU_HM	myrmeciza loricata	White-bibbed Antbird	Thamnophilidae

Source details

Identifier on this site: seb_species_0147
Account identifier: seb_account_0147
Account number on the disc: 147
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative