Canvasback
Aythya valisineria
The canvasback is a species of diving duck, the largest found in North America. Source
Where it is now
In the last 8 weeks this bird was recorded 352 times across 9 areas (each area is a 5 degree square).
See the Canvasback on the live map
Movement and weather
Over the weeks it was present in the past year, its centre in North America ranged from 36°N in December to 48°N in May, about 1,300 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 | 6 April 2026 | 6 April 2026 | 13 April 2026 | 2 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.