Rufous Hornero

furnarius rufus

Furnariidae,Furnariinae · Ovenbirds

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

The account

Description

7.5" Above rufous-brown with an indistinct buffy superciliary, and a rusty brown forehead. Below light buffy brown. Throat, center of belly and crissum whitish. Populations in the north are more rufous-brown above and have more buff on belly. Immature plumage like adult plumage (⁴¹).

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

Where it was recorded

The discs' own checklists select Rufous Hornero at 19 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.1 has no usable coordinate and is listed below unplotted.

Assis ASSB
Fazenda Campininha FZSB
Fazenda Intervales FASB
Fazenda Paraiso PASB
Itirapina ITSB
Jureia-Peruibe JUSB position not recoverable
Morro do Diabo MOSB outside the map
Nucleo Sta. Virginia NUSP
Parati PARB
Pariquera-Abaixo PESB
PE Carlos Botelho PCSB
PE Jacupiranga PJSB
Reserva Ecológica Guapiacú RERB
Rio de Janeiro RIRB
Santa Barbara do Rio Pardo SNSB
Serra Bocaina SESB
Serra da Cantareira SRSB
Serra dos Orgãos SRRB
Serra dos Tucanos SDTC

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 staccato sequence of 'chit' or 'tchreet' notes often given as duet. It rises then lowers pitch and sometimes the staccato sequences become slower. Also a 'tchak tchak' note.

Behavior

Fearless and noisy, often close to human habitation and on road sides, running around on the ground or perched on posts.

Breeding

The mud nests are conspicuous in areas where the species is common.

Habitat and status

Widespread and common in open country with bushes and scattered trees and near buildings. Has without any doubt benefited from the wholesale deforestation. At Fazenda Intervales I found a pair 26 km away from the administration buildings on the Carmu road deep within primary forest!

Distribution

Throughout, less common on coast. Mostly below 1700 meters.

Taxonomy notes

An invader following deforestation.

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

Pair song. Pocone, Pantanal, Mato Grosso, 8/3/97. Sunny, 30°C. Open country near water and swamps. With Campylorhynchus turdinus, Ortalis ruficauda, Pitangus sulphuratus, Theristicus caudatus.
Calls. Pocone, Pantanal, Mato Grosso, 8/4/97. Sunny, 28°C. Open country with single trees and bushes.
Pair song. Pocone, Pantanal, Mato Grosso, 8/4/97. Sunny, 30 °C. Open country
Song. Fazenda Intervales, 11/30/97. Sunny, 27°C. Open country with trees and bushes.
Song. Serra da Canastra, 11/11/98. Cloudy, 25°C. Pastures. With Columbina squammata.
Calls. Cornell Cat#25415. Fazenda São Roberto, Quarrai, Rio Grande do Sul, 08/81. with Myiopsitta monachus, recordist's squeaks. Recording by William Belton.

Recording files on the disc

6950.mp3 Pair song. Pocone, Pantanal, Mato Grosso, 8/3/97. Sunny, 30°C. Open country near water and swamps. With Campylorhynchus turdinus, Ortalis ruficauda, Pitangus sulphuratus, Theristicus caudatus.
868.mp3 Calls. Pocone, Pantanal, Mato Grosso, 8/4/97. Sunny, 28°C. Open country with single trees and bushes.
15548.mp3 Pair song. Pocone, Pantanal, Mato Grosso, 8/4/97. Sunny, 30 °C. Open country
13128.mp3 Song. Fazenda Intervales, 11/30/97. Sunny, 27°C. Open country with trees and bushes.
10112.mp3 Song. Serra da Canastra, 11/11/98. Cloudy, 25°C. Pastures. With Columbina squammata.
2879.wav Calls. Cornell Cat#25415. Fazenda São Roberto, Quarrai, Rio Grande do Sul, 08/81. with Myiopsitta monachus, recordist's squeaks. Recording by William Belton.

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	furnarius rufus	Rufous Hornero	Furnariidae,Furnariinae
CLEMENTS	furnarius rufus	Rufous Hornero	Furnariidae,Furnariinae
AOU_HM	furnarius rufus	Rufous Hornero	Furnariidae,Furnariinae

Source details

Identifier on this site: seb_species_0061
Account identifier: seb_account_0061
Account number on the disc: 61
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative