As part of the cooperation entered into in 2019 with the Swiss Sandgrueb Foundation (Egg near Zurich), Gut Aiderbichl assumed responsibility for the lifelong care of a healthy group of 15 Arabian mares. The Sandgrueb Foundation had taken over the stock of an Arabian breeder a few years earlier because she had reached her limits for reasons of age and health, had to give up breeding and wanted the animals to be in good hands. She has a very moody character and takes longer to build trust with people. Unfortunately, she is also incredibly vindictive.