Der auf einer sandbedeckten Steinplatte liegende Mauerläufer bewegt seine Unterseite, indem er mit den Füßen seitwärts alternierend strampelt und dabei die Flügel spreizt. Zur Sonnenbadestellung spreizt er die Flügel seitwärts maximal und bietet den Rücken oder die Unterseite der Sonne dar.

The film shows how the wallcreeper Tichodroma muraria moves during sandbaths. The bird lies with body and head on a sand-covered stone slab and moves backwards and forwards on the base, making struggling movements sideways with the feet alternately and propping himself up with the wings spread open. In the pauses he cleans his feathers and keeps scratching his head. When the sandbath is over, he goes into sunbath position, standing upright and offering his underside to the sun or, lying flat on the sand, he turns his back to the sun, opening his wings out sideways as far as they will go.