Doves freed for coming of Jesus
It is one of the 12 main religious events of the year.
A ceremony has taken place in the Annunciation Cathedral on Red Square in central Moscow.
The Head of the Orthodox Church in Russia, Partiarch Aleksy II, released several white pigeons following the mass.
The freeing of the birds symbolises the spreading of Jesus' incarnation around the world.
Traditionally in Russia, believers avoid hard work on Annunciation Day.