Streaked Flycatcher

myiodynastes maculatus

Tyrannidae,Tyranninae · Tyrannine Flycatchers

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

The account

Description

20 cm. A common large and strongly streaked tyrant flycatcher of woodlands. Bill large, the mandible with a flesh-colored base. Head streaked with a yellow semiconcealed coronal patch and a white superciliary stripe. Ear coverts and eye stripe starting above bill blackish. A white malar streak paralleled by a grayish stripe below. Above brownish, streaked darker, the rump and tail rufous-brown. Wings blackish with rufous edging to the flight feathers. Whitish below, becoming pale yellow on belly, and broadly streaked dusky.

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

Where it was recorded

The discs' own checklists select Streaked Flycatcher at 27 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 recorded locality lies beyond the map's edge and is listed below instead.1 has no usable coordinate and is listed below unplotted.

Angra dos Reis ANRB
Assis ASSB
Barreiro Rico BRSB
Boraceia BOSB
Fazenda Intervales FASB
Fazenda Paraiso PASB
Ilha do Cardoso ILSB
Ilha São Sebastião SSSB
Itirapina ITSB
Jureia-Peruibe JUSB position not recoverable
Marica MRRB
Morro do Diabo MOSB outside the map
Nucleo Sta. Virginia NUSP
Parati PARB
Pariquera-Abaixo PESB
PE Carlos Botelho PCSB
PE Jacupiranga PJSB
Reserva Ecológica Guapiacú RERB
Rio de Janeiro RIRB
Santa Barbara do Rio Pardo SNSB
Serra Bocaina SESB
Serra da Cantareira SRSB
Serra dos Orgãos SRRB
Serra dos Tucanos SDTC
Sete Barras STSB
Ubatuba UBSB
Vassununga VASB

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 frequent calls are a 'hi-chup' and a sharp 'zick...zick...' or, 'zwei....zwe-i'. A pair suddenly utters together a chattering series of hard calls, (see cut #5 and also cut #5 of Legatus leucophaius). A frequently uttered call at dawn or dusk is a repeated 'twi-twe-tle' with emphasis on the first syllable.

Behavior

Perches in the upper and middle stratum of forest trees. Performs aerial hawks and mostly upward strikes from a perch within the canopy. Also frugivorous.

Breeding

Nest is in crevices of trees (⁴⁴).

Habitat and status

More or less common in primary and secondary humid or drier forest and borders, clearings and in mangroves.

Distribution

Throughout, up to 1500 meters (⁴⁴).

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

Call, Ilha do Cardoso, 10/21/94. Sunny, 25°C. Forest edge. With Thryothorus longirostris, Schiffornis virescens, wing snapping of Chiroxiphia caudata, Leptopogon amaurocephalus.
Dawn song. PE Jacupiranga, Caverna do Diabo, 11/5/95. Sunny, 25°C. Secondary open forest edge
Dawn song. Fazenda Intervales, 11/30/97. Sunny, 27°C. Secondary forest.
Call. Pirapora, 11/13/98. Sunny, 30°C. Gallery forest.
Call. Rio Escuro, near Ubatuba, 10/13/99. Sunny, 27°C. Forest. With Leptopogon amaurocephalus, Chiroxiphia caudata.
Call, 'twiit --twiit'. Jureia-Peruibe, 10/12/99. Cloudy, 22°C. Primary forest. With Attila rufus, Dysithamnus stictothorax, Myrmotherula unicolor.

Recording files on the disc

14083.wav Call, Ilha do Cardoso, 10/21/94. Sunny, 25°C. Forest edge. With Thryothorus longirostris, Schiffornis virescens, wing snapping of Chiroxiphia caudata, Leptopogon amaurocephalus.
16293.mp3 Dawn song. PE Jacupiranga, Caverna do Diabo, 11/5/95. Sunny, 25°C. Secondary open forest edge
4269.mp3 Dawn song. Fazenda Intervales, 11/30/97. Sunny, 27°C. Secondary forest.
10044.mp3 Call. Pirapora, 11/13/98. Sunny, 30°C. Gallery forest.
5974.wav Call. Rio Escuro, near Ubatuba, 10/13/99. Sunny, 27°C. Forest. With Leptopogon amaurocephalus, Chiroxiphia caudata.
9464.wav Call, 'twiit --twiit'. Jureia-Peruibe, 10/12/99. Cloudy, 22°C. Primary forest. With Attila rufus, Dysithamnus stictothorax, Myrmotherula unicolor.

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): description.

Description Disc 1 · 2011

Voice Disc 1 · 2011

Behavior Disc 1 · 2011