• Storks are here from late March to mid-August only, then fly to Africa; from fall to early spring you get the floodplain trails and Konik horses but empty nests, and May to July is best for chicks
• Stork House closed for now, though the reserve trails stay open at all times, so check the castle site before counting on the exhibits
• Weekday-only bus from Marchegg station: line 542 runs to the castle on weekdays but not at weekends, so plan another way from the station on a Saturday or Sunday

The Untere Marchauen reserve starts a few steps from Schloss Marchegg, on the March River floodplain. Its white storks nest in old oaks and ashes, the largest tree-nesting colony in Central Europe. A tall wooden platform puts kids at eye level with the nests, and wild Konik horses graze along the loop trails. The Stork House in the castle covers storks and horses and streams a live nest camera.