Wintering waterfowl on the Drava reservoirs
Goldeneye, pochard, tufted duck, smew, goosander, greylag geese, whooper swans some winters; huge gull roosts; white-tailed eagle. Ptuj Lake and Ormož Lagoons, Drava valley (Styria), Slovenia.
Best time: 15 Dec – 10 Feb (December to February). Where: Ptujsko jezero (Ptuj Lake), Ormoške lagune nature reserve (DOPPS), Drava at Šturmovci (Sturmovci) (Slovenia). Time of day: Gull roost lifts in the 30 min around sunrise.
- You can go on your own
- Free
- Telescope recommended
- Sound 3/5
Open it in the interactive calendarSunrise and sunset listening times for the day you pick, and the map.
When is the best time?
Peak: 15 Dec – 10 Feb. Mid December to early February
Active from 1 Nov to 10 Mar (November to March) in a typical year.
Time of day
Gull roost lifts in the 30 min around sunrise; duck and goose activity through the first 2 h of light; the roost arrival in the last hour before sunset.
- Dawn departure: 30 min before sunrise → 2 h after sunrise
- Evening arrival: 1 h before sunset → last light
What will you hear?
Thousands 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.
Binoculars?
Telescope recommended. Rafts and gull roosts are 200 m to 1 km out on the reservoir; scope from the dyke, binoculars minimum.
Where to go
- Ptujsko jezero (Ptuj Lake) — Slovenia's largest reservoir; the biggest waterbird concentrations in the country. Viewing from the south dyke. Map
- Ormoške lagune nature reserve (DOPPS) — Former sugar-factory settling ponds restored by DOPPS; hides, water buffalo grazing; geese and ducks. Map
- Drava at Šturmovci (Sturmovci) — Old river channels between the two lakes; goosander, kingfisher, wintering eagles. Map
How to go on your own, and what it costs
Ptuj: walk or cycle the south dyke of the lake from Ptuj (car park by the dam). Ormož lagoons: DOPPS reserve with hides and trails, free, from the Ormož side. Šturmovci: the old-channel tracks between the lakes.
Cost: Free.
Field-recording notes
Reservoir shores are bare and windy; the dam spillway is a constant low-frequency source at Ptuj. Ormož lagoons are quieter but sit next to the railway. Hunting: waterfowl shooting is restricted on the reserve but occurs on the Drava outside it — Sundays in winter are loud. Dawn gull departures are a wing-noise event best taken from the dyke with a wide pair; the settling ponds at Ormož let you get close to geese in the hides.
Sources
Similar spectacles
Wadden Sea autumn: geese, waders and whooper swans in the marshBarnacle goose yapping in flocks of tens of thousands over the Ballum marsh, brent geese growling on the flats, golden plover flocks whistling, whooper swan families bugling on the polders at night, curlew; the tide.
Pink-footed goose dawn flightsTens of thousands of geese lifting off the mudflats at first light in a wall of 'wink-wink' calls, wave after wave overhead.
Whooper swans & barnacle geeseBugling whoopers and yapping barnacle flocks like a huge crowd; the whole Svalbard barnacle population is on one estuary.
Arctic geese on the Lower RhineWhite-fronted geese's high yelping in skeins of thousands, bean geese's deeper 'kayak', the roar of a roost lifting off the Rhine at first light, whooper swans on the Bislicher Altrhein; barges and the A57 underneath.
Lower Oder Valley: whooper swans, geese and the flooded poldersWhooper swan bugling in chorus over the polder ice-edge, geese lifting at dawn by the thousand, smew and goldeneye wing-whistle, eagle yelps; in October, cranes; in May, corncrakes at night.
Wintering cranes at ArjuzanxWaves of cranes dropping into the flooded roost after dark, a continuous rolling chorus that carries for kilometres over the pine plantations.
More: all spectacles in Slovenia · winter geese, swans and ducks · January · February · December