Dutch Bird Alerts
| 21 augustus 2021 | ||
| 15:00 | FR | Black-winged Pratincole |
| 14:19 | FL | Aquatic Warbler |
| 13:33 | GR | Gull-billed Tern |
| 12:30 | GE | Glossy Ibis |
| 12:30 | FR | Short-toed Snake Eagle |
| 12:26 | NH | Gull-billed Tern |
| 11:29 | NH | Gull-billed Tern |
| 11:29 | GE | Bearded Vulture |
| 11:11 | NH | Aquatic Warbler |
| 10:58 | NH | Marsh Sandpiper |
| 10:50 | NB | Zitting Cisticola |
| 10:37 | UT | Pygmy Cormorant |
| 10:23 | NH | Gull-billed Tern |
| 09:51 | NH | Blyth's Reed Warbler |
| 20 augustus 2021 | ||
| 17:35 | NH | Gull-billed Tern |
| 16:32 | NH | Gull-billed Tern |
| 15:27 | NB | Short-toed Snake Eagle |
| 15:26 | NB | Zitting Cisticola |
| 14:09 | ZL | Zitting Cisticola |
| 14:06 | GE | Glossy Ibis |
| 12:59 | ZH | Zitting Cisticola |
| 12:41 | GE | Bearded Vulture |
| 11:44 | NH | Gull-billed Tern |
| 11:19 | UT | Pygmy Cormorant |
| 10:58 | NH | Marsh Sandpiper |
| 10:57 | NB | Zitting Cisticola |
| 09:26 | GR | Gull-billed Tern |
| 08:25 | NH | Gull-billed Tern |
| 07:30 | UT | Pygmy Cormorant |
| 07:22 | 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