Serra Do Mar Tyrannulet

phylloscartes difficilis

Tyrannidae,Elaeninae · Tyrannulets

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

The account

Description

12 cm. Bright olive-green above. An obvious white eye ring and supraloral stripe. The area below eye is black. Gray cheeks with a black crescent spot. Wings green without bars, the primaries with yellow margins. Below grayish, white on throat and lower belly.

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

Where it was recorded

The discs' own checklists select Serra Do Mar Tyrannulet at 7 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

Gives a hasty and rapid chatter sounding like 'dodidei', the middle syllable being difficult to hear when the bird is further away.

Behavior

Forages from 1-4 meters in forest and scrub. An upward strike gleaner.

Habitat and status

Not uncommon in dense humid forest, forest border and dense low scrub at the tree line. Occurs singly and not in mixed flocks.

Distribution

Serra dos Orgãos, Serra Mantiqueira and Serra Bocaina. 1000-2000 meters.

Taxonomy notes

Endemic to southeast Brazil.

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. Serra Bocaina, near S. Jose do Barreiro, 11/2/93. Cloudy, 20°C. Secondary scrub.
Call. 10/23/99, Serra da Mantiqueira, Agulhas Negras road. Clear, cool (16°C), in the morning fog. Montane forest. With Tijuca atra, Batara cinerea, Thamnophilus caerulescens, Basileuterus leucoblepharus.
Calls, Serra dos Orgãos, 5/97. Recording by Juan Mazar Barnett

Recording files on the disc

11959.mp3 Song. Serra Bocaina, near S. Jose do Barreiro, 11/2/93. Cloudy, 20°C. Secondary scrub.
43.wav Call. 10/23/99, Serra da Mantiqueira, Agulhas Negras road. Clear, cool (16°C), in the morning fog. Montane forest. With Tijuca atra, Batara cinerea, Thamnophilus caerulescens, Basileuterus leucoblepharus.
15831.mp3 Calls, Serra dos Orgãos, 5/97. Recording by Juan Mazar Barnett

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	phylloscartes difficilis	Serra Do Mar Tyrannulet	Tyrannidae,Elaeninae
CLEMENTS	phylloscartes difficilis	Serra Do Mar Tyrannulet	Tyrannidae,Elaeninae
AOU_HM	phylloscartes difficilis	Serra Do Mar Tyrannulet	Tyrannidae,Elaeninae

Source details

Identifier on this site: seb_species_0208
Account identifier: seb_account_0208
Account number on the disc: 208
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative