Known from the discs' own bird lists
Black Hawk-Eagle
spizaetus tyrannus
Accipitridae
- 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
58-66 cm. The adult has a bushy occipital crest of moderate length; tarsi feathered; glossy black, remiges indistinctly banded with sooty brown; the feathers of the crown and crest with white bases, pileum often spotted; black tail tipped white with three grayish-brown bands; tibiae, tarsi and under tail coverts evenly barred black and white; iris orange; cere slaty; bill blue black toes yellow.
The immature's forehead and superciliary stripe are buffy white; crown feathers brown with white tips; crest black, tipped white; back and wings sooty brown, remiges white tipped, lesser coverts with fine white vermiculation; tail white tipped with four or five black and grayish brown bands; throat, foreneck and median breast white, the latter more or less heavily striped with fuscous; abdomen fuscous brown with pale barring and mottling; legs and undertail coverts evenly barred as in adult.
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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
When a pair performs aerial acrobatics early or late in the day above the forest a loud "wiu....wiu...." , and a "wit wit wit...wiiiiu", the last syllable emphasized and loudest, is uttered. Quite vocal.
Behavior Disc 1 · 2011
Seems to be mainly a perch-hunter scanning environs during stops between brief flights within the forest canopy. Apprehends mainly arboreal birds and mammals; also lizards and snakes.
Breeding Disc 1 · 2011
Seems to breed in the area.
Habitat and status Disc 1 · 2011
The most common larger raptor in the Mata Atlantica. Relatively easy to see (and to hear, in spring) in heavily forested areas. Sea level to 2000 meters.
Distribution Disc 1 · 2011
Throughout, regular in the coastal Mata Atlantica from Ilha do Cardoso north to Rio de Janeiro; also in the Serra Mantiqueira- and the Serra dos Orgãos. In Estado São Paulo reported from Icapara, Sete Barras, Paraibuna, Boraceia, Ubatuba, Ubatumirim, Rio Juquia, Sertao das Cotias, Cananeia, Fazenda Intervales, Arapei.
Taxonomy notes Disc 1 · 2011
Long tail usually held less open than other large eagles. Adult's dark body and wing linings in combination with boldly barred flight feathers and rectrices diagnostic.
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
Call. Rio Escuro, near Ubatuba, 10/13/99. Sunny, 27°C. Forest. With Procnias nudicollis. 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
Call. Rio Escuro, near Ubatuba, 10/13/99. Sunny, 27°C. Forest. With Procnias nudicollis. Disc 1 · 2011
Itatiaya, Estado São Paulo, October 2003. 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
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: BOSB.CKD; FASB.CKD; JUSB.CKD; NUSP.CKD; PESB.CKD; PJSB.CKD; RERB.CKD; RIRB.CKD; SESB.CKD; SRRB.CKD; SSSB.CKD; STSB.CKD; UBSB.CKD
Listed on product/edition lists: SEBRAZIL.CKD; SEBZ_D1.CKD
Disc 3 · 2006
Selected on local checklists: BOSB.CKD; FASB.CKD; JUSB.CKD; NUSP.CKD; PARB.CKD; PESB.CKD; PJSB.CKD; RERB.CKD; RIRB.CKD; SDTC.CKD; SESB.CKD; SRRB.CKD; SSSB.CKD; STSB.CKD; UBSB.CKD
Listed on product/edition lists: SEBZ_D1.CKD; Sebrazil.ckd
Disc 1 · 2011
Selected on local checklists: BOSB.CKD; FASB.CKD; JUSB.CKD; NUSP.CKD; PARB.CKD; PESB.CKD; PJSB.CKD; RERB.CKD; RIRB.CKD; SDTC.CKD; SESB.CKD; SRRB.CKD; SSSB.CKD; STSB.CKD; UBSB.CKD
Listed on product/edition lists: SEBZ_D1.CKD; Sebrazil.ckd