Dutch Bird Alerts
| 13 augustus 2021 | ||
| 11:11 | GE | Golden Eagle |
| 10:36 | NH | Marsh Sandpiper |
| 10:31 | NH | Gull-billed Tern |
| 10:27 | DR | Short-toed Snake Eagle |
| 10:14 | NH | Black Guillemot |
| 10:13 | NH | Aquatic Warbler |
| 10:02 | DR | Short-toed Snake Eagle |
| 09:10 | NH | Balearic Shearwater |
| 08:15 | NH | Gull-billed Tern |
| 07:58 | GE | Aquatic Warbler |
| 07:28 | NH | Blyth's Reed Warbler |
| 12 augustus 2021 | ||
| 20:00 | NH | Gull-billed Tern |
| 17:44 | ZH | Aquatic Warbler |
| 15:08 | ZL | Zitting Cisticola |
| 15:01 | GE | Bearded Vulture |
| 14:54 | GR | Gull-billed Tern |
| 14:45 | FR | White-rumped Sandpiper |
| 14:42 | FR | Griffon Vulture |
| 14:10 | NH | Gull-billed Tern |
| 13:59 | ZL | Zitting Cisticola |
| 13:29 | NH | Black Guillemot |
| 13:08 | GR | Broad-billed Sandpiper |
| 10:22 | NH | Gull-billed Tern |
| 10:21 | GE | Glossy Ibis |
| 10:08 | GE | Short-toed Snake Eagle |
| 10:08 | NH | Pectoral Sandpiper |
| 09:24 | NH | Gull-billed Tern |
| 08:42 | NH | Marsh Sandpiper |
| 07:46 | UT | Pygmy Cormorant |
| 07:11 | NH | Blyth's Reed Warbler |
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