Red-eyed Vireo
Red-eyed Vireo has increased: up 37% on the route-weighted index since 1968.
About the Red-eyed Vireo
The Red-eyed Vireo (Vireo olivaceus) is a North American member of the Vireos (Vireonidae). In this analysis it is grouped with the forest birds.
- Size
- 4.5–6 in long (11–15 cm) — a small, deliberate songbird (typical for the family)
- Habitat
- Woodlands and forest edges, including wooded suburbs and parks.
- Diet
- Insects and spiders gleaned from foliage and bark, with seeds and berries in season.
- Range
- Recorded on 2,735 Breeding Bird Survey routes across 45 states, most concentrated in the Appalachian Mountains.
- Family
- Vireonidae · Forest birds
Notable Red-eyed Vireo TrendsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →
No notable trend signals for Red-eyed Vireo. See the full index history below.
Red-eyed Vireo Population Forecast
If the recent trend holds, Red-eyed Vireo is projected to stay roughly flat through 2029, near 11 (95% range 9.5–12). A 5-year backtest shows a typical error of ±3.6%, with 100% of held-out values landing inside the 95% band.
Where the Red-eyed Vireo Is Detected
BBS routes recording Red-eyed Vireo, sized by most recent count.
Red-eyed Vireo Population Trend by State
Red-eyed Vireo Population Trend by Region
Bird Conservation Regions are the ecological unit for trends.
Red-eyed Vireo Conservation Status
Our route-weighted index shows it up about 36% since 1968.
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. Trend is a route-weighted relative-abundance index, not an absolute population.