Lined Seedeater

sporophila lineola

Emberizidae · Emberizine Sparrows

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

The account

Description

11 cm. Male has a black bill. Black upperparts with a white stripe in the center of the crown. Malar streak. Wing speculum and rump white. White underparts. Throat black.

The female has a yellow bill, or a yellow mandible. Olive upperparts, yellowish buffy underparts.

Male Disc 3 · 2006
Female Disc 3 · 2006

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

Where it was recorded

The discs' own checklists select Lined Seedeater 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.

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 'fip' or 'tsir' (¹¹⁹). Song variable, 15 notes in 2 sec. (vocalization # 1).

Behavior

forages in high grass or shrubs. Sings from high perches, trees, tops of tall shrubs, telephone lines.

Habitat and status

Still locally common at forest edge and scrubby open areas, although subject to trapping for the cage bird trade.

Distribution

In Estado São Paulo mostly inland. Closer to the shore found at Pariquera Acu, Sete Barras, Ubatumirim, Itapetininga, PE Jacupiranga (¹¹⁹), Cunha near Sao Louis de Paraitinga, Estado Sao Paulo (Remold unpubl.). To 1200 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, December 29, 2004. Cunha, Estado São Paulo, gardens and woodlots on periphery of town. 28°C, some clouds, no wind.

Recording files on the disc

2305.mp3 Song, December 29, 2004. Cunha, Estado São Paulo, gardens and woodlots on periphery of town. 28°C, some clouds, no wind.

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 edited this account; the sections listed below differ from the Disc 3 release text.

Sections with genuine 2011 edits (vs the Disc 3 release): distribution.

Description Disc 1 · 2011