Sharpbill

oxyruncus cristatus

Oxyruncidae · Sharpbill

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

The account

Description

16 cm. Sexes alike. A relatively long pointed bill. Head and neck grayish-white with dusky scaling the head somewhat crested, the crest being red bordered by black with the red largely concealed. Above olive-green. The wings are dusky with two narrow yellow wing bars and indistinct yellow edging to the flight feathers. Belly yellowish with bold black spots.

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

Where it was recorded

The discs' own checklists select Sharpbill at 17 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.

Barreiro Rico BRSB
Boraceia BOSB
Fazenda Intervales FASB
Jureia-Peruibe JUSB position not recoverable
Morro do Diabo MOSB outside the map
Nucleo Sta. Virginia NUSP
Parati PARB
PE Carlos Botelho PCSB
PE Jacupiranga PJSB
Reserva Ecológica Guapiacú RERB
Rio de Janeiro RIRB
Serra Bocaina SESB
Serra da Cantareira SRSB
Serra dos Orgãos SRRB
Serra dos Tucanos SDTC
Sete Barras STSB
Ubatuba UBSB

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

Song is a very high and sharp descending whistle, 'ziiieeeew', repeated every minute or so. Other vocalizations include a weak 'tet' and a high tremulous 'tsirrr' (³⁰).

Behavior

Often high in the canopy of tall trees, sometimes with mixed bird parties, perch-gleaning chickadee-like and probing moss, lichen and epiphytes. Feeds on insects and fruit. Sometimes perches erect quietly for long times (³⁰, ⁴⁴).

Breeding

Nest is a small cup (³⁰).

Habitat and status

Local, but not uncommon, in tall primary forest. On the Tres Picos trail at Itatiaia a group of these birds can be found year after year in the same area probably due to the occurrence of particular fruiting trees.

Distribution

Throughout. Serra dos Orgãos, Serra do Mar, Serra Mantiqueira, Serra Paranapiacaba (Fazenda Intervales, PE Jacupiranga). 400-1400 meters (Itatiaia).

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 or call. Serra da Mantiqueira, Tres Picos trail, Itatiaia NP, 11/5/93. Sunny, 25°C. Primary forest. With Euphonia pectoralis and Hylopezus nattereri.
Song or call, Parco Estadual PE Jacupiranga, Caverna do Diabo, 10/23/94. Sunny, 28°C. Primary rainforest.
Song or call, Fazenda Intervales, 11/29/98. Sunny, 25°C. Primary forest. With Brotogeris tirica.
Song or call. 10/22/99, Serra da Mantiqueira, Tres Picos Trail. Clear, 25°C. Primary forest. With Dendrocincla turdina, Terenura maculata, Saltator similis, Chamaeza ruficauda.

Recording files on the disc

4751.mp3 Song or call. Serra da Mantiqueira, Tres Picos trail, Itatiaia NP, 11/5/93. Sunny, 25°C. Primary forest. With Euphonia pectoralis and Hylopezus nattereri.
9251.wav Song or call, Parco Estadual PE Jacupiranga, Caverna do Diabo, 10/23/94. Sunny, 28°C. Primary rainforest.
12006.mp3 Song or call, Fazenda Intervales, 11/29/98. Sunny, 25°C. Primary forest. With Brotogeris tirica.
14193.wav Song or call. 10/22/99, Serra da Mantiqueira, Tres Picos Trail. Clear, 25°C. Primary forest. With Dendrocincla turdina, Terenura maculata, Saltator similis, Chamaeza ruficauda.

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	oxyruncus cristatus	Sharpbill	Oxyruncidae
CLEMENTS	oxyruncus cristatus	Sharpbill	Oxyruncidae
AOU_HM	oxyruncus cristatus	Sharpbill	Cotingidae

Source details

Identifier on this site: seb_species_0298
Account identifier: seb_account_0298
Account number on the disc: 298
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative