Wildlife spectacles in the Netherlands

7 spectacles through the year, ordered by when they peak. Open Netherlands in the interactive calendar for the map and listening times.

• Meadow-bird chorus: godwits, redshanks and lapwings over the Frisian poldersNetherlands · Dawn chorus & song · peak 1 Apr–10 MayThe 'grutto-grutto' yodel of godwits in tumbling display flight, redshanks' ringing calls, lapwings' wheezing aerobatics and wing-thrum, skylarks, snipe drumming and the bleating of hundreds of birds at once — the sound of the Dutch spring polder.
• Breskens: spring migration over the Westerschelde dikeNetherlands · Migration · peak 20 Apr–15 MayA river of flight calls — meadow pipit, yellow wagtail, finches, linnets — low over your head, with the Westerschelde ships behind; screaming swift flocks on a May top day; harriers silent overhead; a crowd of counters calling out species.
• Tree frog choruses of Zeeuws-VlaanderenNetherlands · Amphibian chorus · peak 1 May–31 MayA rattling, surprisingly loud 'kè-kè-kè-kè' chorus from hundreds of tree frogs around the old fortress moats and pools — audible across the polder — with marsh frogs and nightingales behind; the ramparts of Retranchement alone hold a few hundred.
• Biesbosch beavers at duskNetherlands · Nocturnal · peak 15 May–31 AugA beaver's tail slap, gnawing on willow, the push of its wake in a still creek; reed warblers and cuckoos at dusk in May; the murmur of thousands of geese and ducks settling on the open water at night; ospreys calling in spring.
• Wadden Sea high-tide wader roosts: Westhoek and the Frisian coastNetherlands · Migration · peak 20 Jul–10 Sep and 1 May–25 MayThe rising murmur of tens of thousands of dunlin and curlew sandpipers packed on the roost, then the rush of wings as the flock lifts and turns; curlew and grey plover calls; brent geese in autumn; wind over the flats.
• Red deer rut: Oostvaardersplassen and the VeluweNetherlands · Rut · peak 15 Sep–10 OctStags roaring across open polder grassland with no cover to dampen it — an unusually long, clean reverb; antler clashes; geese lifting off the marsh behind; on the Veluwe, roars from the heath edge with wild boar grunting in the rides.
• Lauwersmeer in winter: barnacle geese, wigeon and sea eaglesNetherlands · Wintering waterfowl · peak 1 Nov–31 JanBarnacle geese yapping in a continuous chorus on the polder and the roar of 10,000 lifting at once; greylags and white-fronts honking in the dawn flight; wigeon whistling in the dark; eagles' yelps; the Dark Sky Park is genuinely quiet at night.