Scaled Pigeon
columba speciosa
Columbidae · Pigeons, Doves
- Disc 2 · 2001 listed
- Disc 3 · 2006 listed
- Disc 1 · 2011 listed
The account
Description
28-34 cm. Most of the head, back, wing coverts, and inner remiges vinous reddish brown. The feathers of the neck and upper mantle with a white subterminal spot and a purple fringe. The feathers of the breast, belly and crissum whitish buff, edged metallic purple giving a scaled appearance. Eyering and bill crimson. Legs purplish red.
In the female the vinous reddish brown on the back is replaced with dull brown and the scaly markings are less purplish.
The juvenile is dull dark brown with weakly indicated lighter scaling.
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The disc records this picture against the bird without a caption. Disc 3 · 2006
Where it was recorded
The discs' own checklists select Scaled Pigeon at 4 localities.
- PE Jacupiranga PJSB
- Reserva Ecológica Guapiacú RERB
- Rio de Janeiro RIRB
- 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.
The account, continued
Voice
Call deep 'whoo ho-u-o hoo ho-uu-o', sometimes two even lower pitched 'hu hu' preceding the call (vocalization # 3).
Behavior
Forages in the canopy of trees, among epiphytes and in bushes for fruit; sometimes in flocks.
Habitat and status
Almost extinct in Estado São Paulo (119). Occurs on the edge of rain forest and swamp forest with single standing tall trees, and in clearings in forested areas.
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
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Call, October 1993, Iguape, São Paulo, swamp forest.
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Call. Iguape, São Paulo, swamp forest, 30°C, sunny.
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Song. August 10th, 2003, Rio Mapia, near Borba, Amazonas. Open scrub with scattered trees, 30°C, humid. with Cercomacra nigrescens, Thryothorus coraya.
Recording files on the disc
- 11261.mp3 Call, October 1993, Iguape, São Paulo, swamp forest.
- 9638.mp3 Call. Iguape, São Paulo, swamp forest, 30°C, sunny.
- 6619.mp3 Song. August 10th, 2003, Rio Mapia, near Borba, Amazonas. Open scrub with scattered trees, 30°C, humid. with Cercomacra nigrescens, Thryothorus coraya.
More images
Juvenile 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
In the 2011 Disc 1 revision, part of this account was truncated at exactly 512 bytes (a 2011 mastering defect). The earlier releases preserve the complete text.
Truncated sections in the 2011 revision: description. The complete earlier text is shown beneath each truncated section.
Description Disc 1 · 2011
28-34 cm. Most of the head, back, wing coverts, and inner remiges vinous reddish brown. The feathers of the neck and upper mantle with a white subterminal spot and a purple fringe. The feathers of the breast, belly and crissum whitish buff, edged metallic purple giving a scaled appearance. Eyering and bill crimson. Legs purplish red.
In the female the vinous reddish brown on the back is replaced with dull brown and the scaly markings are less purplish.
The juvenile is dull dark brown with weakly indicat
Disc 1 (2011) text ends here — truncated at exactly 512 bytes in the 2011 mastering (historical defect, kept as recovered).
Complete earlier text — Disc 3 · 2006 (19 bytes lost in 2011)
28-34 cm. Most of the head, back, wing coverts, and inner remiges vinous reddish brown. The feathers of the neck and upper mantle with a white subterminal spot and a purple fringe. The feathers of the breast, belly and crissum whitish buff, edged metallic purple giving a scaled appearance. Eyering and bill crimson. Legs purplish red.
In the female the vinous reddish brown on the back is replaced with dull brown and the scaly markings are less purplish.
The juvenile is dull dark brown with weakly indicated lighter scaling.
Shown for comparison from the Disc 3 · 2006; it does not repair or replace the Disc 1 · 2011 historical text above.
Voice Disc 1 · 2011
Call deep 'whoo ho-u-o hoo ho-uu-o', sometimes two even lower pitched 'hu hu' preceding the call (vocalization # 3).
Behavior Disc 1 · 2011
Forages in the canopy of trees, among epiphytes and in bushes for fruit; sometimes in flocks.
Habitat and status Disc 1 · 2011
Almost extinct in Estado São Paulo (119). Occurs on the edge of rain forest and swamp forest with single standing tall trees, and in clearings in forested areas.
Distribution Disc 1 · 2011
Throughout. In Estado São Paulo there are old recordings from Iguape(40); in 1993-1995 observed near Iguape in swampy forest (Remold & Ramos Neto, unpubl.); also Olimpia, near São Jose de Rio Preto(40). To 950 meters
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 speciosa | Scaled Pigeon | Columbidae |
| CLEMENTS | columba speciosa | Scaled Pigeon | Columbidae(in part) |
| AOU_HM | columba speciosa | Scaled Pigeon | Columbidae(in part) |
Source details
- Identifier on this site
- seb_species_0002
- Account identifier
- seb_account_0002
- Account number on the disc
- 2
- Source edition
- CD03 / 2006 package
- Original taxonomy scheme
- WORLD
- Structure status
- heuristic; decoded_account_text and segment JSON remain authoritative