Pale-breasted Thrush

turdus leucomelas

Turdidae · Thrushes

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

The account

Description

23 cm. Above gray-brown. Head and nape gray. Wings with rufous primaries. Throat streaked brown on white background. Breast light buff-gray. Belly whitish. Bill olive-yellow.

Adult Disc 3 · 2006
Juvenile Disc 3 · 2006

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

Where it was recorded

The discs' own checklists select Pale-breasted Thrush 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 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 simple phrases repeated several times, sometimes starting with a 'dju dju' (vocalizations # 1-3) Call a rasping ' wer wer wer' (Vocalizations # 4-6). Alarm note 'cha cha zit' or 'zizit' (¹⁴³).

Behavior

Feeds on ground, often under cover. Forages also in fruiting trees.

Breeding

A common breeder from October to January.

Habitat and status

Common inland in dry open forest habitat and gardens, near houses.

Distribution

Throughout, in winter also closer to coast, e.g.Serra Mantiqueira (mostly below 1500 meters), Nova Friburgo, Itatiaia (⁴⁰), Guarau, Guaviruva, Itapetininga, Itararé, Rio Verde, Campos do Jordão, São Jose do Barreiro, Bananal, Arapei (¹¹⁹).

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. Vassununga, Estado São Paulo, 11/7/98. Sunny, 30°C. Secondary forest.
Song. Serra da Canastra, 11/9/98. Sunny open woods, pastures.
Song. Serra da Canastra, 11/12/98. Cloudy, 25°C. Secondary forest.
Call. Pirapora, 11/13/98. Sunny, 27°C. 0pen country near river, bushes. With Pitangus sulphuratus, Basileuterus rivularius.
Calls. Pirapora, 11/13/98. Sunny, 27°C. Gallery forest. With Tolmomyias sulphurescens, Basileuterus culicivorus, Crypturellus undulatus.
Call. 10/25/99, Serra da Mantiqueira. Clear, 25°C. Forest.

Recording files on the disc

8759.mp3 Song. Vassununga, Estado São Paulo, 11/7/98. Sunny, 30°C. Secondary forest.
5757.mp3 Song. Serra da Canastra, 11/9/98. Sunny open woods, pastures.
4002.mp3 Song. Serra da Canastra, 11/12/98. Cloudy, 25°C. Secondary forest.
9723.mp3 Call. Pirapora, 11/13/98. Sunny, 27°C. 0pen country near river, bushes. With Pitangus sulphuratus, Basileuterus rivularius.
13444.mp3 Calls. Pirapora, 11/13/98. Sunny, 27°C. Gallery forest. With Tolmomyias sulphurescens, Basileuterus culicivorus, Crypturellus undulatus.
4033.mp3 Call. 10/25/99, Serra da Mantiqueira. Clear, 25°C. 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	turdus leucomelas	Pale-breasted Thrush	Turdidae
CLEMENTS	turdus leucomelas	Pale-breasted Thrush	Turdidae
AOU_HM	turdus leucomelas	Pale-breasted Thrush	Turdidae

Source details

Identifier on this site: seb_species_0329
Account identifier: seb_account_0329
Account number on the disc: 329
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative