Dutch Bird Alerts
| 21 december 2021 | ||
| 15:49 | GE | Hume's Leaf Warbler |
| 15:28 | ZL | Zitting Cisticola |
| 15:22 | NB | Green-winged Teal |
| 14:31 | NH | Ring-necked Duck |
| 14:29 | ZH | Dusky Warbler |
| 14:15 | ZL | Zitting Cisticola |
| 14:13 | NH | Glossy Ibis |
| 12:56 | NH | Siberian Lesser Whitethroat |
| 12:52 | ZH | Hume's Leaf Warbler |
| 12:41 | NH | Black Guillemot |
| 12:32 | NH | Dartford Warbler |
| 11:22 | ZH | Black-bellied Dipper |
| 10:13 | ZH | Western Swamphen |
| 09:26 | UT | Pygmy Cormorant |
| 20 december 2021 | ||
| 16:48 | NH | Glossy Ibis |
| 15:50 | NH | Black Guillemot |
| 14:48 | ZH | Hume's Leaf Warbler |
| 13:31 | NH | Dartford Warbler |
| 13:25 | DR | White-throated Dipper |
| 12:20 | GE | Hume's Leaf Warbler |
| 12:15 | ZH | White-throated Dipper |
| 11:44 | NH | Siberian Lesser Whitethroat |
| 11:10 | FR | Little Bunting |
| 11:04 | UT | Pygmy Cormorant |
| 10:49 | NH | Black Guillemot |
| 10:35 | FL | Pallas's Leaf Warbler |
| 10:06 | ZL | Eastern Olivaceous Warbler |
| 09:38 | ZH | Western Swamphen |
| 09:33 | ZH | Dusky Warbler |
| 19 december 2021 | ||
| 15:54 | NH | Glossy Ibis |
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