Spotted Bamboowren

psilorhamphus guttatus

Rhinocryptidae · Tapaculos

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

The account

Description

5.1" Rather long billed and long tailed. Iris whitish.

Male is gray above with small white dots becoming rust brown on the lower back with dark vermiculations. Wings rufous-brown, the secondaries and tertials with white tips and a penultimate black dot, the wing coverts with white tips. Throat and chest whitish. Buff on sides. Underparts barred dark, with black dots on the chest. Tail blackish, the sides buff, and a white terminal bar.

The female is brown where the male is gray.

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

Where it was recorded

The discs' own checklists select Spotted Bamboowren at 9 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.

Barreiro Rico BRSB
Fazenda Intervales FASB
Jureia-Peruibe JUSB position not recoverable
Nucleo Sta. Virginia NUSP
Parati PARB
PE Carlos Botelho PCSB
Reserva Ecológica Guapiacú RERB
Serra dos Orgãos SRRB
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

A series of `to-to-to-to-to` notes on an even pitch, about two 'to's per second lasting for 15-20 seconds.

Behavior

Almost exclusively close to the ground (2 -3 meters) in dense forest undergrowth with bamboo. Very difficult to observe.

Habitat and status

Uncommon in humid primary and secondary dense lowland forest and humid brushland with large stands of bamboo (e.g. near Ubatuba, Iguape).

Distribution

Throughout. Up to 800 meters at Fazenda Intervales.

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 Ubatuba, 10/26/94. Cloudy, some rain, no wind. 25°C.
Song Ubatuba, 10/25/94 Cloudy, 25°C. Dense secondary forest. With Chiroxiphia caudata.
Song. Despraiado, near Iguape, Serra Itatins, 11/4/95. Sunny, humid, 30°C. Secondary forest, scrub. With Vireo olivaceus, Chiroxiphia caudata.

Recording files on the disc

14749.wav Song Ubatuba, 10/26/94. Cloudy, some rain, no wind. 25°C.
15351.mp3 Song Ubatuba, 10/25/94 Cloudy, 25°C. Dense secondary forest. With Chiroxiphia caudata.
2938.mp3 Song. Despraiado, near Iguape, Serra Itatins, 11/4/95. Sunny, humid, 30°C. Secondary forest, scrub. With Vireo olivaceus, Chiroxiphia caudata.

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	psilorhamphus guttatus	Spotted Bamboowren	Rhinocryptidae
CLEMENTS	psilorhamphus guttatus	Spotted Bamboowren	Rhinocryptidae
AOU_HM	psilorhamphus guttatus	Spotted Bamboowren	Rhinocryptidae

Source details

Identifier on this site: seb_species_0158
Account identifier: seb_account_0158
Account number on the disc: 158
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative