This is running around the Internet...

It looks like the ibex are licking something off the dam. Possibly something like salts leaching out of the concrete.

From SuperTopo: Dam Ibex climbing.  One post says, "The dam is at Lago Baitone in Brescia, Italy"

Pictures:
European Ibex practice their balance on the face of a rock dam in Italy. No fear.




From Prairie State Outdoors Web log


Here's a YouTube video:


More...


Another image, from Semplicemente Stambecchi... aggiunte immagini 28-09-08

Click for full-size image.