Gray-hooded Attila

attila rufus

Tyrannidae,Tyranninae · Tyrannine Flycatchers

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

The account

Description

21 cm. Larger than Attila phoenicurus with a long and strong bill. The whole head is slaty gray with whitish streaks on the throat. Back reddish rusty. Rump and tail cinnamon rufous. Wings rufous with black primaries. Breast orange buff, the belly more yellow.

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

Where it was recorded

The discs' own checklists select Gray-hooded Attila 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 has no usable coordinate and is listed below unplotted.

Angra dos Reis ANRB
Barreiro Rico BRSB
Boraceia BOSB
Fazenda Intervales FASB
Ilha do Cardoso ILSB
Ilha São Sebastião SSSB
Jureia-Peruibe JUSB position not recoverable
Nucleo Sta. Virginia NUSP
Parati PARB
Pariquera-Abaixo PESB
PE Carlos Botelho PCSB
PE Jacupiranga PJSB
Rio de Janeiro RIRB
Serra Bocaina SESB
Serra da Cantareira SRSB
Serra dos Orgãos SRRB
Serra dos Tucanos SDTC
Sete Barras STSB
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

Most common call is a loud 'wi wi wi wi wi TI pu' or 'wi wi wi wi wi wi TI TI pu' with emphasis on the next to last syllable, the "wi" whistles slowly increasing in pitch (cut #2). Also a quick 'wiwiwiwiwiwiwiwiwi' on the same pitch (cuts #1,#3,#4 and #5). Alarm call is a high fast rattle 'tiktiktiktiktiktiktiktiktik' (cut #6), also a hard 'trk...trk...'.

Behavior

Forages in the sub-canopy of forest and engages in outward-hover-gleaning, sallying from perches within the canopy and fruit eating.

Breeding

Attila spadiceus, a closely related species, builds a cup nest of a four-attachment-points design (¹⁰⁶).

Habitat and status

Common in the middle statum of mature secondary and of primary rain forest and forest border. Frequently well hidden within the foliage and sometimes remarkably difficult to see.

Distribution

Throughout. Serra Mantiqueira, Serra dos Orgãos, Serra do Mar, Ubatuba, Parati, Rio de Janeiro, Angra dos Reis, Fazenda Intervales, Cananeia, PE Jacupiranga, Peruibe etc. From sea level to 1600 meters at Itatiaia. Still present at Ibitipoca near Lima Duarte (MG).

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

Wiwiwi-call, Ubatuba, 10/31/93. Sunny, 22°C. Forest. With Hemitriccus obsoletus, Basileuterus culicivorus.
Calls. Iguape, 11/7/95. Rainy, clouds, 20°C. Secondary/primary forest. With Philydor atricapillus.
Call. 10/13/99 Jureia-Peruibe. Sunny, 20°C. Forest.
Call. 10/13/99 Jureia-Peruibe. Sunny, 20°C. Primary forest. With Habia rubica.
Calls. Ibitiboca, 11/1/00. Sunny, 25°C. Primary gallery forest.
Call, Fazenda Capricornio, Ubatuba, 10/17/99, cloudy, rain, 25°C, open forest.

Recording files on the disc

7873.wav Wiwiwi-call, Ubatuba, 10/31/93. Sunny, 22°C. Forest. With Hemitriccus obsoletus, Basileuterus culicivorus.
4858.mp3 Calls. Iguape, 11/7/95. Rainy, clouds, 20°C. Secondary/primary forest. With Philydor atricapillus.
8255.wav Call. 10/13/99 Jureia-Peruibe. Sunny, 20°C. Forest.
2588.wav Call. 10/13/99 Jureia-Peruibe. Sunny, 20°C. Primary forest. With Habia rubica.
11146.wav Calls. Ibitiboca, 11/1/00. Sunny, 25°C. Primary gallery forest.
13611.mp3 Call, Fazenda Capricornio, Ubatuba, 10/17/99, cloudy, rain, 25°C, open forest.

More images

This image is referenced by the disc but no file survives.

Video

A legacy video format that browsers may not play. Open the recovered file.

Attila rufus, Fazenda Intervales, 11/27/97.

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	attila rufus	Gray-hooded Attila	Tyrannidae,Tyranninae
CLEMENTS	attila rufus	Gray-hooded Attila	Tyrannidae,Tyranninae
AOU_HM	attila rufus	Gray-hooded Attila	Tyrannidae,Tyranninae

Open questions about this bird

Recovered evidence that has not been settled. It is published because leaving it out would misrepresent what the discs contain.

Later listening, kept separate from the disc's own claims

content_mc1 — review_identification: Gray-hooded Attila (human_review; definite)

Listening observation HRO_SCAN_0007

What was heard: Gray-hooded Attila

Relationship to the disc's evidence: agrees

Identification certainty: definite · transcription certainty: clear · handwritten_original

Source details

Identifier on this site: seb_species_0269
Account identifier: seb_account_0269
Account number on the disc: 269
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative