Eagles were usually linked to death Gods in the same way as the crow was linked to death Goddesses. They represented intelligence, renewal, and courage.The Crow was tied to Crone Goddesses such as Badb, and to the Goddess of war or death like the Morrigan. The Raven is similar to the crow in that it is deeply associated with death deities. It has also been known as the otherworldly body for both Gods and Goddesses. Like the crow, it flew over Celtic battlefields as the deity incarnate. Birds, especially ravens and crows, usually warn of bloodshed and battle.
Morrigan came in the shape of a bird to warn the Brown Bull. Deirdre’s dream of three birds drawing blood foreshadowed death, and Lleu Llaw Gyffes was shedding rotting flesh while in the form of an eagle.The Irish war goddess was said to call the ravens down the battlefield to feast on the flesh of the slain. Birds can also be used to demonstrate a warrior’s prowess by their method of capture. Crane symbolizes secret knowledge, patience, and longevity. Numerous Celtic myths tell us of a heroic figure or deity who was changed into a crane. Celtic mythology has both solar and underworld symbolism for the crane.
It is associated with the solar deities, especially in their healing aspect; it is also depicted with weapons and battle objects.In conclusion, the most frequently used symbols of the bird in Celtic Mythology are closely connected with the physical well being of the tribe. Divination of future events and past wisdom can be gained through proper use of animals. Very powerful opponents take the shapes of animals for extra power. Spirits and supernatural beings also take animal forms, often temporarily, before being reborn to guard a land or clan and thus its fertility. Thus, animals symbolize the essence of fertility and vitality in Celtic mythology.