Cocoa Thrush
turdus fumigatus
Turdidae · Thrushes
- Disc 2 · 2001 not listed
- Disc 3 · 2006 listed
- Disc 1 · 2011 listed
The account
Description
23 cm. Mostly rufescent brown, the belly lighter buffy. Chin and throat pale buff, streaked brown.
The juvenile is deep brown with pale spots on crown, nape, mantle and back. Chin and throat pale buff with black spots. Buff shaft streaks on scapulars and buff spots at end of secondaries. Underside pale brown with black spots.
-
Adult Disc 3 · 2006 -
Juvenile Disc 3 · 2006
Each plate is labelled with the disc's own caption.
Where it was recorded
The discs' own checklists select Cocoa Thrush at 1 locality.
- 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
The song below differs from a recorded song from Trinidad (145). Call a harsh 'bak' or 'chuk' and a rapid 'chat chat chat' (143).
Behavior
Forages in low vegetation and on the ground, shy. Sings from a concealed perch up in a tree.
Breeding
December.
Habitat and status
Rare in the understory and on the ground in rain forest, often near water.
Distribution
Might occur as a straggler in northern Estado Rio de Janeiro. A record from Rio Paraiba (85 km North of Rio de Janeiro at the border of Minas Gerais)(40). One individual near Ubatuba on 7/13/2003 (David and John Cooper, UK., unpubl.). Mostly below 1000 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
-
Song, August 2003, Carajas, Para, primary rainforest with open areas.
Recording files on the disc
- 9672.mp3 Song, August 2003, Carajas, Para, primary rainforest with open areas.
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 — not 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 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 | turdus fumigatus | Cocoa Thrush | Turdidae |
| CLEMENTS | turdus fumigatus | Cocoa Thrush | Turdidae |
| AOU_HM | turdus fumigatus | Cocoa Thrush | Turdidae |
Source details
- Identifier on this site
- seb_species_0331
- Account identifier
- seb_account_0331
- Account number on the disc
- 331
- Source edition
- CD03 / 2006 package
- Original taxonomy scheme
- WORLD
- Structure status
- heuristic; decoded_account_text and segment JSON remain authoritative