Dutch Bird Alerts
| 31 juli 2021 | ||
| 13:35 | GE | Glossy Ibis |
| 13:03 | NH | Gull-billed Tern |
| 12:59 | FR | Short-toed Snake Eagle |
| 12:33 | DR | Gull-billed Tern |
| 12:27 | GR | Gull-billed Tern |
| 09:40 | UT | Pygmy Cormorant |
| 09:05 | FR | Balearic Shearwater |
| 30 juli 2021 | ||
| 21:51 | NH | Gull-billed Tern |
| 20:13 | ZH | Gull-billed Tern |
| 19:14 | ZL | Pectoral Sandpiper |
| 18:56 | NH | Gull-billed Tern |
| 18:35 | FL | Rosy Starling |
| 16:28 | NH | Marsh Sandpiper |
| 16:09 | ZH | Gull-billed Tern |
| 14:37 | GR | Gull-billed Tern |
| 13:15 | DR | Gull-billed Tern |
| 12:56 | FR | Pectoral Sandpiper |
| 10:33 | GE | Short-toed Snake Eagle |
| 10:28 | FR | Short-toed Snake Eagle |
| 10:09 | UT | Two-barred Crossbill |
| 09:58 | GR | Gull-billed Tern |
| 09:40 | NH | Short-toed Snake Eagle |
| 08:55 | ZH | Balearic Shearwater |
| 08:36 | UT | Pygmy Cormorant |
| 29 juli 2021 | ||
| 20:00 | ZL | Glossy Ibis |
| 17:10 | GE | Golden Eagle |
| 16:51 | FR | Pectoral Sandpiper |
| 15:20 | DR | Short-toed Snake Eagle |
| 15:09 | NH | Gull-billed Tern |
| 12:41 | GR | Gull-billed Tern |
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