5 , 12.5 cm. Male similar to the interposita race of the extralimital Formicivora serrana occuring in Northern Estado Rio de Janeiro and Southern Minas Gerais, very dark, black below, dark brown above, with white narrow fringes on side of body often not visible, no white fringe on head. White spots on the wing covers small, tail feathers with small terminal white tips. Female above rufous brown, white superciliary and black cheeks, below buffy.
Song a fast series of low pitched tchiuk notes, calls high pitched kiu-kiu-kiu ^65 .
Foraging in pairs in lower stratum of open dry forest and scrub.
Nest June to November, two eggs.
Common in dry restinga scrub containing cacti and bromeliads consisting of vegetated zones 30-80 sqm separated by a 5-15 meters expanse of sand area.
Coastal central Estado Rio de Janeiro, near sea level only around<8E>Cabo Frio<8E>. Principally within an 80 km stretch of the coast between<8E>Saquarema<8E>and Cabo Frio ^65 . Endangered, due to its small range and loss of habitat due to development.
Originally described as a subspecies of Formicivora serrana ^104 . Ridgely and Tudor ^44 consider it to be a separate species. For more information see ^175
11067 Song, calls . Praia de Macambaba, Rio de Janeiro, 10<10>31<10>98. Recording by J. Minns.:
16065 >. Female: 9970 >. Male:
Character status: partial decoder; angle-bracket byte markers are preserved
Recovered structure; field assignment may be heuristic
Structured account sections
Description
5 , 12.5 cm. Male similar to the interposita race of the extralimital Formicivora serrana occuring in Northern Estado Rio de Janeiro and Southern Minas Gerais, very dark, black below, dark brown above, with white narrow fringes on side of body often not visible, no white fringe on head. White spots on the wing covers small, tail feathers with small terminal white tips. Female above rufous brown, white superciliary and black cheeks, below buffy.
Voice
Song a fast series of low pitched tchiuk notes, calls high pitched kiu-kiu-kiu ^65 .
Behavior
Foraging in pairs in lower stratum of open dry forest and scrub.
Breeding
Nest June to November, two eggs.
Habitat and status
Common in dry restinga scrub containing cacti and bromeliads consisting of vegetated zones 30-80 sqm separated by a 5-15 meters expanse of sand area.
Distribution
Coastal central Estado Rio de Janeiro, near sea level only around<8E>Cabo Frio<8E>. Principally within an 80 km stretch of the coast between<8E>Saquarema<8E>and Cabo Frio ^65 . Endangered, due to its small range and loss of habitat due to development.
Taxonomy notes
Originally described as a subspecies of Formicivora serrana ^104 . Ridgely and Tudor ^44 consider it to be a separate species. For more information see ^175
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative
Release-specific historical evidence — the three releases remain separate; none is canonical
Release history
This work was published as three separate releases: the Disc 3 release first, the Disc 2 release later, and the Disc 1 release in 2011. Differences between them are historical release differences and are never merged.
Disc 3in this release's bird list(aux_nonzero;local_checklist_byte45_flag_1)
Disc 2in this release's bird list(aux_nonzero)
Disc 1 (2011)in this release's bird list(aux_nonzero;local_checklist_byte45_flag_1)
The account in the Disc 1 (2011) revision
The 2011 Disc 1 revision carries this account text unchanged from the Disc 3 release.
Historical taxonomy
WORLD
formicivora littoralis
Restinga Antwren
Thamnophilidae
Antbirds,Antwrens
CLEMENTS
formicivora littoralis
Restinga Antwren
Thamnophilidae
Antbirds,Antwrens
AOU_HM
formicivora littoralis
Restinga Antwren
Thamnophilidae
Antbirds,Antwrens
Recordings
11067.mp3
11067 Song, calls . Praia de Macambaba, Rio de Janeiro, 10<10>31<10>98. Recording by J. Minns.
