Mouse-colored Tyrannulet

phaeomyias murina

Tyrannidae,Elaeninae · Tyrannulets

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

The account

Description

10 cm. A thick-billed grayish crestless tyrannulet of the interior. Bigger than Camptostoma. Bill black and rather thick, base of mandible horn colored. Olive-brown to gray-brown above with a whitish superciliary stripe. Wings grayish-black with two buffy wingbars. Throat white. Below light brownish-gray with a light yellow belly.

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

Where it was recorded

The discs' own checklists select Mouse-colored 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. 1 recorded locality lies beyond the map's edge and is listed below instead.

Angra dos Reis ANRB
Assis ASSB
Boraceia BOSB
Itirapina ITSB
Morro do Diabo MOSB outside the map
Santa Barbara do Rio Pardo SNSB
Serra dos Tucanos SDTC

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 is a characteristic 'jewjewjew' up to 6 and 7 times. Song is a hasty, slightly ascending 'jijijijijiJIJIdede' with emphasis on the third from the last syllable (cut #1).

Behavior

A upward-hover gleaner and perch gleaner. Also a fruit eater, as the thick bill would suggest (⁷⁴). Forages in shrubs and low trees.

Breeding

Builds a cup nest (⁴⁴).

Habitat and status

Uncommon in open woodland and borders, gardens, gallery forest, and scrub. More common in the arid interior, but present in the Angra dos Reis area close to the shore.

Distribution

Spotty. In Estado São Paulo near Rio Claro, but certainly closer to the shore in suitable habitat. Angra dos Reis, maybe more common in Estado Rio de Janeiro. Up to 1000 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. Near Itirapina, 11/12/95. Sunny, 30°C. Dry forest remnant, cerradão. With Turdus rufiventris.
Song. Santa Cruz de la Sierra, Bolivia, 11/20/96. Sunny, 25°C. Open cerrado with scrub, some trees.
Call, Santa Cruz de la Sierra, Bolivia, 11/21/96. Sunny, 28°C. Open cerrado.
Calls. Pereque, near Angra dos Reis, 10/17/99. Sunny, 30°C. Open scrub, secondary forest.

Recording files on the disc

997.wav Call. Near Itirapina, 11/12/95. Sunny, 30°C. Dry forest remnant, cerradão. With Turdus rufiventris.
4706.wav Song. Santa Cruz de la Sierra, Bolivia, 11/20/96. Sunny, 25°C. Open cerrado with scrub, some trees.
1486.wav Call, Santa Cruz de la Sierra, Bolivia, 11/21/96. Sunny, 28°C. Open cerrado.
538.wav Calls. Pereque, near Angra dos Reis, 10/17/99. Sunny, 30°C. Open scrub, secondary forest.

More images

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

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	phaeomyias murina	Mouse-colored Tyrannulet	Tyrannidae,Elaeninae
CLEMENTS	phaeomyias murina	Mouse-colored Tyrannulet	Tyrannidae,Elaeninae
AOU_HM	phaeomyias murina	Mouse-colored Tyrannulet	Tyrannidae,Elaeninae

Source details

Identifier on this site: seb_species_0188
Account identifier: seb_account_0188
Account number on the disc: 188
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative