Gray-eyed Greenlet

hylophilus amaurocephalus

Vireonidae,Vireoninae · Vireos

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

The account

Description

12.8 cm. A greenlet of dry inland scrub and forest. Very similar to Hylophilus poicilotis but has a rufous crown extending to the upper bill base. Face grayish, separated from the rufous crown by a pale gray superciliary. Auriculars grayish. Underparts buffier. The long bill is pale and the eyes are light gray.

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

Where it was recorded

The discs' own checklists select Gray-eyed Greenlet at 1 locality.

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.

Nucleo Sta. Virginia NUSP

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 variable, a repetition of simple phrases for 3 to 7 times. Interval between phrases between 0.25 and 0.5 s. Frequency of phrases below 3.6 khz (¹¹⁹). Call a scratchy 're...re...re'.

Behavior

Forages in the canopy of trees and scrub.

Habitat and status

Local in dry open forest, caatinga and forest edge, gallery forest. Has invaded degraded areas of the Atlantic forest (¹⁵¹).

Distribution

Throughout. Found inland in Estado São Paulo at many locations such as Braganca Paulista (east of Campinas), Itatiba, Avare (south of Bauru), Ipanema, Sorocaba, Itapetininga, São Paulo city, and closest to the coast near Mogi das Cruzes. In Estado Rio de Janeiro found at Rosal (north of Campos), Teresopolis. In Minas Gerais goes higher than 1700 meters

Taxonomy notes

The two sympatric sibling species Hylophilus poicilotis and Hylophilus amaurocephalus were considered to be separate species by Todd (¹⁵²) and then again by Willis (¹⁵³) and Raposo et al.(¹⁵¹).

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

Scolding call. Serra das Rosas near Franca, 11/7/98. Rain in the morning, then sunny, 27°C. Secondary forest. With Vireo olivaceus.
Song, near Franca, São Paulo, November 8, 1998, sunny, 30°C, open forest, with Corythopsis delalandi, Herpsilochmus atricapillus, Vireo olivaceus, Leptopogon amaurocephalus, Cariama cristata.
Song, November 2002, Tiradente, MG, open scrub, sunny, 25°C, with Troglodytes aedon, Turdus rufiventris, Zonotrichia capensis, Elaenia chiriquensis.

Recording files on the disc

15499.mp3 Scolding call. Serra das Rosas near Franca, 11/7/98. Rain in the morning, then sunny, 27°C. Secondary forest. With Vireo olivaceus.
12224.mp3 Song, near Franca, São Paulo, November 8, 1998, sunny, 30°C, open forest, with Corythopsis delalandi, Herpsilochmus atricapillus, Vireo olivaceus, Leptopogon amaurocephalus, Cariama cristata.
9011.mp3 Song, November 2002, Tiradente, MG, open scrub, sunny, 25°C, with Troglodytes aedon, Turdus rufiventris, Zonotrichia capensis, Elaenia chiriquensis.

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	hylophilus amaurocephalus	Gray-eyed Greenlet	Vireonidae,Vireoninae
CLEMENTS	hylophilus amaurocephalus	Gray-eyed Greenlet	Vireonidae,Vireoninae
AOU_HM	hylophilus amaurocephalus	Gray-eyed Greenlet	Vireonidae,Vireoninae

Source details

Identifier on this site: seb_species_0344
Account identifier: seb_account_0344
Account number on the disc: 344
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative