Tradition / Region: Belarusian Mythology
Alternative names: Gartsuk; Gartsuki
Category: Bird
The Myth
The Gartsuki are mountain spirits in Belarusian folklore that serve Perun, the god of thunder. They usually appear as birds of prey, but they can also take the form of small children with human faces or even transform into horses. Wherever they pass, they leave destruction behind—branches are torn from trees, dust rises into the air, and forests echo with the force of their unseen movement.
At sunrise the Gartsuki descend from the mountains and race through fields and forests. By midday they play among the mountain peaks, and in the evening they return to the highlands. Their constant running and flying stir up powerful winds and storms, making them both companions and servants of Perun. The louder the storm, the more fiercely the Gartsuki are believed to be playing.
Although they are not considered evil, the Gartsuki are wild and dangerous. Their games can flatten crops, break trees, and whip up violent weather. According to tradition, travelers caught in their path risk being overwhelmed by the storms they create, and the spirits vanish only after returning to the mountains with the setting sun.
Sources
Bestiary.us. (n.d.). Gartsuki. In New Bestiary: Encyclopedia of Imaginary Beings. Retrieved June 29, 2026, from https://www.bestiary.us/Gartsuki