Fish Fishers of men. The symbol was a secret symbol for Christians by which they could identify one another. It was also sometimes put an doors to identify a Christian home. Birds Birds are a symbol of the Holy Spirit. Dove came to rest on Jesus at his baptism.
Peacock symbolizes the resurrection.
Parables include birds. When we put a star on top of the tree, the star represents the star that guided the wise men to the stable. Smaller stars lower down on the tree symbolize the heavens or God creation of the entire universe by representing other stars. The light of the world. Light of God in all creation.