14-15 cm. Crown and nape gray with a prominent white superciliary bordered on both sides by black stripes. Above olive brown. Below whitish, with a lemon yellow tinge on the flanks and crissum. Iris reddish.
Characteristic call <10> song a repeated "cheeewee" and "cheeweewi" vocalization 1 . A slurred "cheeii vocalizations 2 and 3 .
Forages in the canopy for fruits and insects, rarely down to eye level.
Breeds in Southeast Brazil in October-January. Morphological and biochemical similarities between the nominate race breeding in North America and /Vireo olivaceus chivi of South America suggests that /chivi originated through colonization of South America by wintering individuals of /olivaceus ^149 .
Common in spring. Apparently undergoes significant movements during the year. At Fazenda Intervales this species is commonly found in mixed bird parties in the non-breeding months of September, February and March. It is much rarer and not associated with bird flocks in the breeding months November, December and January and is very rarely seen between April and September suggesting that it spends these months somewhere else ^150 . Primary and secondary forest and edge, restinga, open forest, parkland.
Throughout, common in the coastal areas. Up to 1500 meters ^133 .
7871 Song, Iguape, S<C4>o Paulo, restinga forest. 10<10>15<10>93. with /Myiarchus swainsoni .: 10303 Call. Jureia-Peruibe, 10<10>13<10>99. Sunny, 20<91>C. Forest.: 9959 Call. 10<10>17<10>99, Nucleo Sta. Virginia. Misty, 15<91>C. Degraded forest.:
8632 >:
Character status: partial decoder; angle-bracket byte markers are preserved
Recovered structure; field assignment may be heuristic
Structured account sections
Description
14-15 cm. Crown and nape gray with a prominent white superciliary bordered on both sides by black stripes. Above olive brown. Below whitish, with a lemon yellow tinge on the flanks and crissum. Iris reddish.
Voice
Characteristic call <10> song a repeated "cheeewee" and "cheeweewi" vocalization 1 . A slurred "cheeii vocalizations 2 and 3 .
Behavior
Forages in the canopy for fruits and insects, rarely down to eye level.
Breeding
Breeds in Southeast Brazil in October-January. Morphological and biochemical similarities between the nominate race breeding in North America and /Vireo olivaceus chivi of South America suggests that /chivi originated through colonization of South America by wintering individuals of /olivaceus ^149 .
Habitat and status
Common in spring. Apparently undergoes significant movements during the year. At Fazenda Intervales this species is commonly found in mixed bird parties in the non-breeding months of September, February and March. It is much rarer and not associated with bird flocks in the breeding months November, December and January and is very rarely seen between April and September suggesting that it spends these months somewhere else ^150 . Primary and secondary forest and edge, restinga, open forest, parkland.
Distribution
Throughout, common in the coastal areas. Up to 1500 meters ^133 .
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;local_checklist_byte45_flag_1)
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
vireo olivaceus
Red-eyed Vireo
Vireonidae,Vireoninae
Vireos
CLEMENTS
vireo olivaceus
Red-eyed Vireo
Vireonidae,Vireoninae
Vireos
AOU_HM
vireo olivaceus
Red-eyed Vireo
Vireonidae,Vireoninae
Vireos
Recordings
7871.mp3
7871 Song, Iguape, S<C4>o Paulo, restinga forest. 10<10>15<10>93. with /Myiarchus swainsoni .