Rusty-collared Seedeater

sporophila collaris

Emberizidae · Emberizine Sparrows

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

The account

Description

12 cm.

Male has a black head. White patch above the lores and below the eye. Collar white. Throat white, bordered below by black pectoral band. Black upperparts. Wings black with two buff wingbars and a white speculum; Belly and crissum whitish. Rump whitish buff.

The female has brownish upperparts, two buff wingbars, and a white speculum. Throat white, chest and belly buffy.

Young male (picture # 3) reflects the male pattern and has a gray head, a white throat, A brown chest band. Upper side brown. Collar not evident. Wings dusky with two buffy wingbars and a whitish speculum. A buff chest and belly.

Male Disc 3 · 2006
Female Disc 3 · 2006
Juvenile male Disc 3 · 2006

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

Where it was recorded

The discs' own checklists select Rusty-collared Seedeater at 1 locality.

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.

Rio de Janeiro RIRB

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 'geb'. Song in structure reminding of song of Stephanophorus diadematus, "rises and falls, repeating a sequence of 1-4 sounds" (¹¹⁹).

Behavior

In pairs or small groups foraging in grass and shrubs, rarely on the ground (¹³³).

Habitat and status

Rare in open swamps, at river and lake edge.

Distribution

In Estado São Paulo found near Iguape, otherwise mostly inland (Rio Pedras, Pontal near Franca, Vista Bonita, Lagoa São Paulo (¹¹⁹)). In Estado Rio de Janeiro found at Lagoa Feia (⁴⁰). Up to 500 meters

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, February 20, 1997, Trinidad near Santa Cruz, Beni, Bolivia. Recorded by Sjoerd Mayer.

Recording files on the disc

2718.mp3 Song, February 20, 1997, Trinidad near Santa Cruz, Beni, Bolivia. Recorded by Sjoerd Mayer.

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	sporophila collaris	Rusty-collared Seedeater	Emberizidae
CLEMENTS	sporophila collaris	Rusty-collared Seedeater	Emberizidae
AOU_HM	sporophila collaris	Rusty-collared Seedeater	Emberizidae

Source details

Identifier on this site: seb_species_0422
Account identifier: seb_account_0422
Account number on the disc: 422
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative