Dutch Bird Alerts
| 24 december 2021 | ||
| 09:00 | ZH | Dusky Warbler |
| 23 december 2021 | ||
| 13:53 | NH | Siberian Lesser Whitethroat |
| 13:01 | NH | Glossy Ibis |
| 11:44 | ZH | Hume's Leaf Warbler |
| 11:42 | UT | Pygmy Cormorant |
| 11:27 | GE | Hume's Leaf Warbler |
| 11:01 | ZH | White-throated Dipper |
| 10:56 | NH | Dartford Warbler |
| 10:50 | ZH | Western Swamphen |
| 10:22 | FR | Great Bustard |
| 09:13 | ZH | Western Swamphen |
| 09:00 | ZH | Dusky Warbler |
| 22 december 2021 | ||
| 21:47 | FR | Thick-billed Murre |
| 19:52 | FR | Great Bustard |
| 15:37 | NH | Black Guillemot |
| 15:10 | GE | Hume's Leaf Warbler |
| 15:05 | NH | Glossy Ibis |
| 14:34 | ZH | Western Swamphen |
| 14:06 | UT | Pygmy Cormorant |
| 13:33 | DR | White-throated Dipper |
| 12:11 | GR | Caspian Plover |
| 11:56 | ZH | Dusky Warbler |
| 11:49 | NH | Dartford Warbler |
| 11:23 | FR | Black Guillemot |
| 11:14 | NH | Siberian Lesser Whitethroat |
| 11:03 | ZH | White-throated Dipper |
| 10:17 | ZH | Hume's Leaf Warbler |
| 10:09 | ZH | Western Swamphen |
| 09:36 | ZH | Black-bellied Dipper |
| 21 december 2021 | ||
| 15:52 | FR | Little Bunting |
Siberische Boompieper
Anthus hodgsoni · Olive-backed Pipit
Datum & Tijd
18-10-2021 10:13
Locatie
| Atlasblok | ZH · 30-16-53 |
|---|---|
| GPS | 52.21416 4.40314 |
| RD | 87.747 470.019 |
| Katwijk Noordduinen |
Tijd & Gedrag
Onbekend
Zekerheid
Determinatie zeker, geen kleedgegevens
Gehoord via
waarneming.nl
Extra informatie
1 ex. overvliegend zuid
3x roepend en mooi dichtbij langsvliegend. Zwaar gestreepte borst, contrastrijk koppatroon en donkergroene rug met diffuse streping.
Gegevens 1e roep: Mean starting frequency = 7.90, Gradient (kHz/s) = 12.70, Parameter 1 = 102.00, Duration of one modulation = 10.20, Parameter 2 = 1040.00
Gegevens 2e roep: Mean starting frequency = 7.70, Gradient (kHz/s) = 10.50, Parameter 1 = 80.00, Duration of one modulation = 9.30, Parameter 2 = 750.00
Waargenomen door:
Gijsbert Twigt