This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Zilant (Tatar)
Zilant is a legendary creature, something between a dragon and a wyvern. Since 1730, it has been the official symbol of Kazan. This winged snake is mentioned in legends about the foundation of Kazan. A Zilant is a legendary creature with the head of a dragon, the body of a bird, the legs of a chicken, the tail of a snake, the ears of a canine, the red wings of a bat or bird, sharp teeth, dark-gray feathers and scaly dark-gray skin.
Originally, it four chicken legs, the body of a bird, and the tail of a serpent. This changed due to Western influence and it developed a more reptilian visage similar to that of a wyvern. So, it went down to two legs, which are sometimes depicted as arms, and a serpentine body. The chicken parts were reduced to the claws and it developed the ability to breathe fire.