Several bird omens foreshadow the final battle between Odysseus's men and the suitors. Early on in the book, two eagles tear each other to death; later, an eagle kills a goose (as in Penelope's dream); and toward the end, an eagle flies by with a swallow in its mouth. As the scene of the revenge draws closer, the birds that symbolize the suitors become smaller and weaker: the suitors' deaths become more and more inevitable. Birds, in The Odyssey, are transient messages from the gods. Athena herself takes the shape of a bird on several occasions; birds represent her sly and gentle take on divine intervention.