Gray Vireo
Vireo vicinior
The gray vireo is a small North American passerine bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is found in the southwestern United States and northern Mexico. Source
Where it is now
In the last 8 weeks this bird was recorded 85 times across 4 areas (each area is a 5 degree square).
See the Gray Vireo on the live map
Arrival dates
The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.
| Region | First arrival | Last arrival | Typical peak | Areas |
|---|---|---|---|---|
| North America | 4 May 2026 | 4 May 2026 | 25 May 2026 | 1 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.