Wildlife spectacles in Slovenia
14 spectacles through the year, ordered by when they peak. Open Slovenia in the interactive calendar for the map and listening times.
Amphibian chorus of the intermittent lakeWall-to-wall Pelophylax chorus with tree frog 'krak-krak' on top, toad trills, yellow-bellied toad's soft 'poop-poop' from karst puddles, Savi's warbler and bittern in the mix.
Black grouse leks above the treelineBubbling 'rookooing' and explosive hissing from several cocks at once on a snow-patched clearing, ring ouzel and water pipit around them; capercaillie 'cork-pop' song from the forest edge in the same weeks.
Waders and terns on the Sečovlje salt pansLittle tern colonies screaming over the pans, stilts and avocets yelping, redshank and Kentish plover, reed warblers in the Dragonja channel; salt-worker rakes and the sea beyond the dyke.
Lake Cerknica reedbed chorus: bittern, crakes, great reed warblerBittern booming across open water, spotted crake's 'whit' whiplash all night, little crake, great reed and Savi's warblers, cuckoo, a huge pool/edible frog chorus underneath, corncrake from the wet meadows on the fringes.
Mura floodplain dawn: orioles, bee-eaters, heronriesOriole fluting, cuckoo, nightingale, bee-eater 'prrup' flocks over the river, night heron croaks at dusk, stork bill-clattering from village nests, tree frogs from the oxbows.
Brown bears from forest hides, KočevskoBears are mostly quiet: heavy footfalls in beech litter, sniffing, huffing and jaw-popping when nervous, cubs squalling, mating-season moans; the surrounding evening chorus (wood warbler, Ural owl at dusk, red deer) is the real soundscape.
Corncrakes and wet-meadow night chorus, Ljubljana MarshCorncrake's rasping 'crex-crex' from several males at once, quail 'wet-my-lips', curlew bubbling at dawn, frog chorus from ditches, grasshopper warbler reeling; church bells and dogs from the villages.
Karst nights: scops owl, nightjar and cicadasScops owl's monotone 'tyuh' every 2–3 s from village edges, nightjar churring on the dry meadows, sub-Mediterranean bush-cricket wall of sound, cicadas at 90+ dB at midday in July, eagle owl from the Vipava cliffs in late winter.
Bat emergence from karst cavesAudible squeaks and wing rustle at cave mouths from Miniopterus colonies of thousands; with a bat detector, horseshoe-bat constant-frequency calls at 80–110 kHz and bent-winged FM sweeps.
Marmots, ibex and chamois in the Julian AlpsMarmot alarm whistles echoing off limestone walls, chough flocks, ptarmigan croaking above the treeline, chamois hissing alarm sneezes; in autumn the roar of red deer from the valleys below.
Wolf howling and Ural owls, Kočevski Rog nightsPack howls with high pup yips from rendezvous sites, carrying several km across karst dolines; Ural owl's deep barking 'wuh-wuh-wuho' and female's hoarse calls; Tengmalm's owl in late winter; red deer in the same windows from mid September.
Edible dormouse nights and the 'polharjenje' seasonSqueals, churring and 'kissing' contact calls from the canopy, loud scrabbling on bark, beechnut shells raining down; in mast years the forest sounds like it is full of monkeys.
Red deer rut in the Dinaric forestsStags roaring across dolines and beech slopes — the Dinaric forest gives long, clean reverberant tails; antler clashes, hinds barking, Ural owls and dormice in the same nights.
Wintering waterfowl on the Drava reservoirsThousands of gulls lifting off the roost at dawn, goldeneye wing-whistle, whooper swans on cold-wave years, greylag flocks; the Ptuj dam and the town road behind.