Picazuro Pigeon

columba picazuro

Columbidae · Pigeons, Doves

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

The account

Description

34 cm. Head and underparts vinous brown, belly paler. The feathers on the hindneck silvery white, edged black. The feathers of upper mantle metallic purple, edged dusky. Back dark gray. Wings dull brown, the feathers of the outer greater and median coverts with white edges giving a white band in the open wing. Tail blue gray with a black terminal band. Iris orange to red. Cere white, bill dark red at the base and with a yellow tip. Orbital skin red.

The female is paler.

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

Where it was recorded

The discs' own checklists select Picazuro Pigeon at 14 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.

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 'couuu-coo-coo-oo coo-coo-oo coo-coo-oo'..

Behavior

In pairs or small groups foraging on the ground, perches in trees.

Breeding

October-December (¹²⁰).

Habitat and status

Common. In open woodland, savannah, agricultural areas with scattered trees, gardens, borders of towns. Must have benefited significantly from the widespread deforestation.

Distribution

Throughout. To 2000 meters

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. Pirapora, 11/13/98. Sunny, 30°C. Gallery forest. With Crypturellus undulatus, Myiarchus tyrannulus.
Song. Rio Doçe, 11/4/00. Cloudy, 25°C. Open forest, houses. With Pitangus sulphuratus, Thraupis sayaca.
Calls, December 30, 2004, Itatiaia, open forest near Hotel Simon, sunny, hot.

Recording files on the disc

13966.mp3 Call. Pirapora, 11/13/98. Sunny, 30°C. Gallery forest. With Crypturellus undulatus, Myiarchus tyrannulus.
3959.mp3 Song. Rio Doçe, 11/4/00. Cloudy, 25°C. Open forest, houses. With Pitangus sulphuratus, Thraupis sayaca.
6006.mp3 Calls, December 30, 2004, Itatiaia, open forest near Hotel Simon, sunny, hot.

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	columba picazuro	Picazuro Pigeon	Columbidae
CLEMENTS	columba picazuro	Picazuro Pigeon	Columbidae(in part)
AOU_HM	columba picazuro	Picazuro Pigeon	Columbidae(in part)

Source details

Identifier on this site: seb_species_0003
Account identifier: seb_account_0003
Account number on the disc: 3
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative