Bird from the Book of Kells. This looks like it could be a goose. The wild goose was the Celtic Christian symbol for the Holy Spirit. One could take this pose, put a peacock crest on it, and make the tail feathers long peacock feathers for a pretty image.
Celtic Christian-Style Rune/Invocation - After many Celts were first converted to Christianity, many old traditions continued under new guises, like this one. This blend of Christian and Pagan belief is largely unique to Irish Catholicism.
Irish Blessing: May the raindrops fall lightly on your brow. May the soft winds freshen your spirit. May the sunshine brighten your heart. May the burdens of the day rest lightly upon you. And may God enfold you in the mantle of His love.