The Slavic fire spirit often depicted as a falcon is Rarog, also spelled Raróg or Raroh.
Rarog is described in Slavic folklore as a fiery spirit or demon, commonly taking the form of a blazing falcon. The image combines two powerful symbols: fire, associated with transformation and supernatural force, and the falcon, associated with speed, height, and mastery of the sky. Some accounts portray Rarog as a small bird that can be carried in a pocket, while others give it a larger, dragon-like or flame-covered form.
Regional traditions vary considerably. In Czech folklore, a raroh could hatch from an egg incubated on a stove for nine days and nights. Polish traditions sometimes describe the rarog as a tiny household bird capable of bringing happiness. These differences reflect the way oral folklore changes from one Slavic culture to another.
Rarog is not the same as the Firebird, the radiant magical bird from Russian fairy tales. Nor should it be confused with Svarog, a deity associated with heavenly fire and craftsmanship, or Simargl, a separate mythological figure with disputed origins.