Known from the discs' own bird lists

Lesser Yellow-headed Vulture

cathartes burrovianus

Cathartidae

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

Account on Disc 1 · 2011 only

The detailed account of this bird below comes from Disc 1 · 2011. The other discs list the bird but carry no account of it, and none is invented here.

From the original Disc 1 · 2011 revision

Detailed account — Disc 1 · 2011

This detailed account first appears in the 2011 Disc 1 revision; the earlier releases have no account for this bird.

Description Disc 1 · 2011

53 - 65 cm. Adult has the bare skin of head and upper neck yellowish to orange with blue markings bordered with green on the crown; dull black above, glossed greenish or purplish, under side duller; iris red; bill ivory white; tarsi dull white; primaries and secondaries from below lighter than in Cathartes aura.

In juveniles the bald parts of head and neck are gray.

The disc records this picture against the bird without a caption. Disc 1 · 2011

Voice Disc 1 · 2011

Usually silent

Behavior Disc 1 · 2011

Flies earlier in the day than Cathartes aura(¹¹⁹).

Habitat and status Disc 1 · 2011

Over marshy areas, savannahs, open woodland.

Distribution Disc 1 · 2011

Straggler from the North, reported once from Lagoa São Paulo.

The Disc 2 · 2001 contains no detailed account for this bird (its 2011 account is shown above). None is invented here.

The Disc 3 · 2006 contains no detailed account for this bird (its 2011 account is shown above). None is invented here.

More images

The disc records this picture against the bird without a caption. Disc 1 · 2011

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.

Historical checklist participation

Disc 2 · 2001

Selected on local checklists: MOSB.CKD; RERB.CKD; RIRB.CKD

Listed on product/edition lists: SEBRAZIL.CKD; SEBZ_D1.CKD

Disc 3 · 2006

Selected on local checklists: MOSB.CKD; MRRB.CKD; RERB.CKD; RIRB.CKD; SDTC.CKD

Listed on product/edition lists: SEBZ_D1.CKD; Sebrazil.ckd

Disc 1 · 2011