# Red-eyed Vireo

*Vireo olivaceus*

One individual was recorded singing over 22,000 songs in a single day, continuing even during the hottest parts of the afternoon.

- **Taxonomy:** Animalia › Chordata › Aves › Passeriformes › Vireonidae › Vireo
- **IUCN Red List status:** Least Concern
- **Population trend:** stable
- **Biome:** forest
- **Habitat:** Deciduous and mixed-leaf forests, often high in the canopy.
- **Diet:** Primarily caterpillars and other insects during breeding; berries and small fruits during migration and winter.
- **Range:** North America, Central America, South America
- **Size:** Length: 12-13 cm; Weight: 12-26 g.
- **Lifespan:** Approximately 10 years in the wild.
- **Active:** diurnal
- **Threats:** Habitat fragmentation, collision with glass windows, and nest parasitism by Brown-headed Cowbirds.
- **Safe to approach?:** Harmless. Observe with binoculars from a distance to avoid disrupting nesting. If a bird strikes a window, place it in a dark, ventilated box for an hour to recover; contact a wildlife rehabilitator if it cannot fly.

## About

The red-eyed vireo ( Vireo olivaceus ) is a small American songbird, 13–14 cm (5.1–5.5 in) in length. 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.

## Sources

- Plate: https://gaia-dex.com/species/0006a198-a4c9-444f-910f-b32448cacce9
- iNaturalist: https://www.inaturalist.org/taxa/891704
- Wikipedia: https://en.wikipedia.org/wiki/Red-eyed_vireo
- Conservation status: IUCN Red List category, as recorded by Gaia-Dex
- Photo: https://inaturalist-open-data.s3.amazonaws.com/photos/272009912/medium.jpg (U.S. Fish and Wildlife Service Northeast Region, no known copyright restrictions (public domain), PD, via iNaturalist)

Habitat, diet, size and similar notes are AI-written summaries; check them against the linked sources before relying on them.