| Dværghejre (SU) (Botaurus minutus) | 1 |
| Adfærd: | Trækkende |
| Tid: | 23:21-23:37 |
| Kommentar til obs.: | Nocturnal migrant recorded with a passive recorder placed in the heathland at Storsig. Two calls were recorded at 23:21 and three calls at 23:37, so probably a migration attempt or the bird was looking for suitable habitat to rest. Calls are characteristic in sound and sonogram shape, with a duration of 134-140 ms and a frequency peak at 1.9-1.96 kHz. Overall arched shape, first rising and then downslurred, with the downslurred part being much longer than the rising one. In the good calls there are several harmonics visible, with the second harmonic band above the main band broken in the middle, only showing at the sides of the call. The intervals are strongly shortened in the uploaded recording (50, 79 and 61 seconds between calls). Further information about the identification of nocturnal flightcalls of Little Bittern (Dværghejre) can be found, e.g., here: https://soundapproach.co.uk/pages/little-bittern |
| Lokalitet: | Storsig, Skagen (23:21 - 23:37) |
| Observatør: | Skagen Fuglestation |
| Medobservatør: | JS |
| Metode: | Passiv lydoptagelse, fx NocMig |
| Kommentar til tur: | Passive recorder |
| Billeder til observationen: |  |
| Lydfiler til observationen: | |
| Observationen er: | Indtastet via hjemmeside |
| Indtastet: | 25-05-2026 22:24:39 |
| Senest redigeret: | 25-05-2026 22:29:58 |
| Links: | Billeder af Dværghejre på netfugl.dk |