Red-eyed Vireo (Vireo olivaceus)
Also known asJuruviara-boreal · Viréo aux yeux rouges · Roodoogvireo · Rotaugenvireo · 红眼莺雀 · アカメモズモドキ · سرودخوان چشمسرخ · خضيري أحمر العينين · Красноглазый виреон · Vireó ullvermell

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Our streaming copies are mirrored from the original xeno-canto file and transcoded to 96 kbps mono — a modification, so we note it here; the licence for each recording is named in its credit above.
3 recordings on this page · licensed CC BY-SA ×3 · mirrored on this server, free for commercial reuse · recorded in Canada, United States, Argentina, Brazil, Colombia, Ecuador and elsewhere · xeno-canto lists 468 recordings for this species in total.
A real field recording of the Red-eyed Vireo. Press play and focus on the rhythm and pitch of each phrase.
About the Red-eyed Vireo
The red-eyed vireo (Vireo olivaceus) is a small American songbird. It is somewhat warbler-like but not closely related to the New World warblers (Parulidae). Common across its vast range, this species is not considered threatened by the IUCN. Vireo is a Latin word referring to a green migratory bird, perhaps the female golden oriole, possibly the European greenfinch. The specific olivaceus is Neo-Latin for 'olive-green', from Latin oliva ('olive'). Description and systematics.
Ecology and behavior
As a member of the Vireonidae, this species is associated with forest canopy, understory, woodland edges and shrubbery. It typically feeds by insects and small fruit, moving deliberately through leaves. That combination of habitat and feeding behavior explains where the bird is easiest to find and why it may be heard more often than seen. Across its range, recorded examples are linked to Canada, United States. Local habitat can change the exact impression of the voice, but the useful field method stays the same: note the perch, surrounding vegetation, and whether the bird repeats one phrase or gives separate contact sounds.What to listen for
Songs are often clear, repeated, whistled phrases; steady chanting and careful pauses are characteristic. The recordings on this page are labeled here as song. Compare each phrase in three passes. First follow the rhythm and repetition. Then judge whether the tone is clear, burry, buzzy, rounded or harsh. Finally notice the pitch direction and the spacing between statements. These three features are more reliable than trying to translate the sound into words alone. A useful field note should describe the whole phrase before naming the bird. For this species, write whether the sound stays level, rises or falls, how long each series lasts, and whether the bird seems exposed, hidden in cover, or associated with a particular edge between habitats. Those details make the recording transferable to a real outdoor encounter. Compare the recording with the habitat immediately around you: the same phrase heard from dense cover, an exposed branch or an open edge can point toward different behavior. Returning to the phrase after a short pause makes the rhythm easier to remember and helps transfer the recording to field use.A field note on this voice
When you are most likely to hear this voice
The recordings featured here were made in May, June. Those months may offer a useful seasonal clue, but vocal activity can vary widely across regions and years. Weather, latitude, food availability and local breeding cycles may all influence when a bird chooses to sing. Think of the timing as a starting point rather than a rule. The examples on this page come from recordings made in United States, Canada. In the field, behavior and habitat often provide stronger evidence than the calendar alone.
Time of day
The collection includes both morning and later-day recordings; the average time is around 07:00. Many birds are especially vocal in the early hours, when sound may carry well and singing can be a regular part of the morning. Birds may also vocalize later in the day while feeding, moving between perches, interacting with nearby individuals or responding to changes around them. Listening conditions can change how a sound is perceived. Returning to the same recording at different times and imagining the surrounding cover, light and weather can make the context easier to hear.
What this vocalization may suggest
This page contains a song rather than a simple call. Songs are often longer, more structured and more repetitive than short calls. A clear phrase repeated at regular intervals can be associated with breeding activity or the defense of space, although the exact context is best confirmed by observation. Shorter notes may accompany movement, alertness or contact with nearby birds. Faster, louder or harsher delivery can sometimes reflect heightened interaction, while an evenly spaced performance may simply be routine. Notice the surrounding behavior before deciding what the sound might mean.
Understanding pitch
High notes do not automatically indicate courtship, and low notes do not necessarily signal alarm. Pitch works alongside rhythm, repetition, volume and tone. A high, clear phrase may be a territorial song, while high, irregular notes might suggest agitation; some low, soft sounds may simply help birds stay in contact. Rather than focusing on pitch alone, observe what the bird is doing before and after the sound. The most useful field note combines the voice with place, time and behavior.
Editor's note
These interpretations are intended as listening guidance based on the available recordings and context, not as proof of an individual bird's intent. Strong observations note the date and time, habitat, perch height, weather and behavior before and after the vocalization.
Similar species
- Bell's VireoVireo belliirecording
- Blue-headed VireoVireo solitariusrecording
- Brown-capped VireoVireo leucophrysrecording
- Chivi VireoVireo chivirecording
- Cozumel VireoVireo bairdirecording
- Grey VireoVireo viciniorrecording
- Plumbeous VireoVireo plumbeusrecording
- Warbling VireoVireo gilvusrecording
- White-eyed VireoVireo griseusrecording
- Black-capped VireoVireo atricapillaprofile
Species grouped by shared genus, family and range. Family: Vireonidae.
More birds recorded in Canada
- Red-breasted NuthatchSitta canadensisrecording
- Red-headed WoodpeckerMelanerpes erythrocephalusrecording
- Red-necked PhalaropePhalaropus lobatusrecording
- Red-shouldered HawkButeo lineatusrecording
- Red-tailed HawkButeo jamaicensisrecording
- Red-throated LoonGavia stellatarecording
- Red-throated PipitAnthus cervinusrecording
- Red-winged BlackbirdAgelaius phoeniceusrecording
Every species xeno-canto lists for this country is on the full Canada list — 406 species, the ones with recordings marked ▶.