Scalloped Hazel
Odontopera bidentata
The scalloped hazel is a moth of the family Geometridae. The species was first described by Carl Alexander Clerck in 1759. Source
Where it is now
No records in the last 8 weeks. It may be out of season where the observers and sensors are.
See the Scalloped Hazel on the live map
Movement and weather
Each season it is first heard regularly where daytime highs are around 14°C (typically 12 to 19°C, from 5 areas).
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 |
|---|---|---|---|---|
| Europe | 11 May 2026 | 18 May 2026 | 1 June 2026 | 5 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.