Known from the discs' own bird lists
Collared Forest-Falcon
micrastur semitorquatus
Falconidae
- Disc 2 · 2001 listed
- Disc 3 · 2006 listed
- Disc 1 · 2011 listed
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
46-56 cm. The adult light phase is black above, white below; remiges boldly barred fuscous and white; a black crescent on the side of the head; a white nuchal collar; upper tail coverts spotted or broadly barred with white; long tail white tipped and with five white bands.
The tawny phase has tawny buff to cinnamon buff underparts; nuchal collar sometimes buffy.
The rare dark phase is brownish black to slate; rump, sides and abdomen barred with white; tail bands grayish; nuchal collar lacking; iris brown; bare skin of face, cere and gape green; bill black; legs yellow.
The immature is variable, the differences probably representing progressive molts; upperparts deep fuscous brown, the crown and tail black; nuchal collar brown, obscure and often missing; feathers of back, wings, and upper tail coverts tippend or barred with rufous; tail bars brownish; underparts either white or cinnamon buff, the breast strongly tinged dull rufous and the entire ventral parts heavily barred with brown.
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The disc records this picture against the bird without a caption. Disc 1 · 2011
The account, continued
Voice Disc 1 · 2011
"ca ca cow", "caaa" or "cop cop cop ".
Behavior Disc 1 · 2011
Perch-hunts in canopy, subcanopy and middle and lower understorey of forest.
Habitat and status Disc 1 · 2011
Rare in rain forest, also gallery forest of rivers, tall secondary growth, sparse dry forest, dense scrub, mangroves.
Distribution Disc 1 · 2011
Throughout. In Estado São Paulo reported from Manduri, Aracacu, Corumbatai, Campininha, Icapara, Guaratuba, Guaracai, Ourooeste, Novo Canaa, Alto do Ribeira (119).
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.
Vocalizations
Each disc's own recording entries are shown under that disc's label. A player appears only where the recording's file survives on a preserved disc.
Disc 2 · 2001
Calls. Pirapora, 11/13/98. Night, 27°C. Near Rio São Francisco, gallery forest. Disc 2 · 2001
Audio file found on Disc 1 (2011). The asserting release's own preserved disc did not carry it; the historical assertion above is unchanged.
Call. Fazenda Intervales, 10/30/00. misty, 18°C. Primary forest. With Barythengus ruficapillus, Lurocalis semitorquatus, Basileuterus culicivorus, Pyriglena leucoptera, Tachyphonus cristatus. Disc 2 · 2001
Audio file found on Disc 1 (2011). The asserting release's own preserved disc did not carry it; the historical assertion above is unchanged.
Disc 1 · 2011
Calls. Pirapora, 11/13/98. Night, 27°C. Near Rio São Francisco, gallery forest. Disc 1 · 2011
More images
The disc records this picture against the bird without a caption. Disc 1 · 2011 The disc records this picture against the bird without a caption. Disc 1 · 2011 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: FASB.CKD; JUSB.CKD; LESB.CKD; MOSB.CKD; RERB.CKD; SRSB.CKD
Listed on product/edition lists: SEBRAZIL.CKD; SEBZ_D1.CKD
Disc 3 · 2006
Selected on local checklists: FASB.CKD; JUSB.CKD; LESB.CKD; MOSB.CKD; PARB.CKD; RERB.CKD; SDTC.CKD; SRSB.CKD
Listed on product/edition lists: SEBZ_D1.CKD; Sebrazil.ckd
Disc 1 · 2011
Selected on local checklists: FASB.CKD; JUSB.CKD; LESB.CKD; MOSB.CKD; PARB.CKD; RERB.CKD; SDTC.CKD; SRSB.CKD
Listed on product/edition lists: SEBZ_D1.CKD; Sebrazil.ckd