Nelson's Sparrow
Ammospiza nelsoni
Nelson's sparrow is a small New World sparrow. Source
Where it is now
In the last 8 weeks this bird was recorded 431 times across 11 areas (each area is a 5 degree square).
See the Nelson's Sparrow on the live map
Movement and weather
Over the weeks it was present in the past year, its centre in North America ranged from 43°N in September to 57°N in June, about 1,600 km apart.
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 | 22 June 2026 | 13 July 2026 | 20 July 2026 | 3 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.