Mistletoe Tyrannulet
Zimmerius parvus
The mistletoe tyrannulet a very small passerine bird in the family Tyrannidae, the tyrant flycatchers. It is found from Guatemala and Belize to Colombia. Source
Where it is now
In the last 8 weeks this bird was recorded 499 times across 2 areas (each area is a 5 degree square).
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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 | 13 July 2026 | 13 July 2026 | 20 July 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.