西琳鸟是俄罗斯民间传说的神话生物，西琳鸟是俄罗斯传说的神话生物，形象为鸟(通常是猫头鹰)身美女头。根据神话传说，西琳鸟住在靠近伊甸园或幼发拉底河附近的“印度陆地上”。

这种神鸟的起源直接基于希腊神话，以及后来有关塞壬的一些民间传说。它们通常被描绘成头戴花冠或带有灵光。西琳鸟为圣人唱优美的歌曲，预言未来的乐趣。但对于凡人，它十分危险，男人听到它的歌声将会忘记大地上的一切，跟随着它们，直至最后死去。为了挽救自己，人们常常通过鸣炮、撞钟等，制造响声来驱走它们。 到公元17〜18世纪，西琳鸟的形象逐惭发生了变化，它们开始象征世界和谐(因为它们住在天堂附近)。那个时代的人们相信，它象征着永恒的欢乐和无比的幸福，只有真正快乐的人才能听到西琳鸟的歌声，而且只有极少数人能看到它，因为它飞得那幺快，人类的幸福很难赶上。

Sirin is a mythological creature of Russian legends, with the head and chest of a beautiful woman and the body of a bird (usually an owl). According to myth, the Sirins lived "in Indian lands" near Eden or around the Euphrates River.

These half-women half-birds are directly based on the Greek myths and later folklore about sirens. They were usually portrayed wearing a crown or with a nimbus. Sirins sang beautiful songs to the saints, foretelling future joys. For mortals, however, the birds were dangerous. Men who heard them would forget everything on earth, follow them, and ultimately die. People would attempt to save themselves from Sirins by shooting cannons, ringing bells and making other loud noises to scare the bird off. Later (17-18th century), the image of Sirins changed and they started to symbolize world harmony (as they live near paradise). People in those times believed only really happy people could hear a Sirin, while only very few could see one because she is as fast and difficult to catch as human happiness. She symbolizes eternal joy and heavenly happiness.