|Aptly-named Wallcreeper Tichodroma muraria|
Both species are two typical altitudinal migrants. They breed in the Alpine region and in autumn descend to lower levels. Wallcreeper is a tough bird to find in summer, but fortunately not so in winter. The limestone cliffs of the Karst are the preferred wintering habitat, where these birds can find invertebrate prey even in winter. They also regularly winter on the cliffs of Devin/Duino near Trieste, where you can watch Wallcreepers climbing the cliffs, just metres above the sea!
The relatively restricted wintering habitats in Slovenia make them far more easier to find that in the Alps, where every cliff could potentially hold one. Nevertheless, even here, it's always a thrill to see that magic flick of crimson!