I do not have much information about these BirdSavers. They were built in 2010 on a workshop in a small village (S-chanf, Switzerland) that lies in a high mountain valley at 5450 ft. Because of the surrounding natural mountain vegetation and the large windows of the workshop, I assume they had quite a few collisions previous to the installation of the BirdSavers.
I do not know who took the pictures. I do not have any contact person from that place, and I even do not know whether the Acopian BirdSavers are still in use. All I have are these pictures from 2010 when the BirdSavers were built.

Best wishes,
Roman Furrer, Dr.
Mitarbeiter Konflikte Vögel-Mensch
roman.furrer@vogelwarte.ch
www.vogelwarte.ch
January 31, 2025