White-throated Kingbird

tyrannus albogularis

Tyrannidae,Tyranninae · Tyrannine Flycatchers

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

The account

Description

18 cm. Head pale gray with a white throat contrasting with a dark mask. Back olive-green. The rest of the underparts are bright yellow with only a faint wash of olive across chest. Wings and tail dusky, the wing feathers edged pale. The tail is more forked than that of Tyrannus melancholicus.

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

Where it was recorded

The discs' own checklists select White-throated Kingbird at 3 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

Calls a high series of 'tic tic tic....' often combined to a trill 'tic-titititititititititic....'. Thinner than the vocalizations of Tyrannus melancholicus. I do not know the dawn song.

Behavior

Perching on bushes, trees, fences and telephone wires. Performs aerial hawking and forages also on or near the ground. Frugivorous.

Breeding

The genus Tyrannus builds open cup nests (⁷⁷)

Habitat and status

Rare in bushy open savannah, cerrado, agricultural areas and gallery woodland frequently near water.

Distribution

Reported from the interior of São Paulo State,Jaboticabal near Ribeirão Preto, Silvania etc. (⁴⁰). To be expected to occur closer to the coast in suitable habitat.

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

Calls, song. Pirapora, 11/13/98. Sunny,30°C. Gallery forest, bushy pasture. With Pitangus sulphuratus, Troglodytes aedon, Saltator similis, Cyclarhis gujanensis.
Song. Cornell Cat#81506. Cuiaba, Mato Grosso, 11/11/88. With Furnarius rufus, Recording by P. K. Donahue
Calls. Cornell Cat#44082. Pampas de Heath, Madre de Dios, Peru, 8/15/88. With Columba cayennensis, Rhynchotus rufescens. Recording by T. A. Parker, III.
Song, call. Cornell Cat#44083. Pampas de Heath, Madre de Dios, Peru, 8/15/88. Recording by T. A. Parker, III.

Recording files on the disc

2933.wav Calls, song. Pirapora, 11/13/98. Sunny,30°C. Gallery forest, bushy pasture. With Pitangus sulphuratus, Troglodytes aedon, Saltator similis, Cyclarhis gujanensis.
14942.wav Song. Cornell Cat#81506. Cuiaba, Mato Grosso, 11/11/88. With Furnarius rufus, Recording by P. K. Donahue
2164.wav Calls. Cornell Cat#44082. Pampas de Heath, Madre de Dios, Peru, 8/15/88. With Columba cayennensis, Rhynchotus rufescens. Recording by T. A. Parker, III.
7663.wav Song, call. Cornell Cat#44083. Pampas de Heath, Madre de Dios, Peru, 8/15/88. Recording by T. A. Parker, III.

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	tyrannus albogularis	White-throated Kingbird	Tyrannidae,Tyranninae
CLEMENTS	tyrannus albogularis	White-throated Kingbird	Tyrannidae,Tyranninae
AOU_HM	tyrannus albogularis	White-throated Kingbird	Tyrannidae,Tyranninae

Source details

Identifier on this site: seb_species_0287
Account identifier: seb_account_0287
Account number on the disc: 287
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative