Loki accidentally got his staff stuck in the body of a particularly greedy one of these creatures, which turned out to be a giant in disguise and forced him to steal the apples of Idunn.
In Babylonian myth, King Etana freed one of these creatures so that it would guide him to the plant of birth. Another of these animals stole the cap of Tarquinius Priscus, but returned it, foreshadowing his later rule. Loki accidentally got his staff stuck in the body of a particularly greedy one of these creatures, which turned out to be a giant in disguise and forced him to steal the apples of Idunn. Vethrfolnir sits between the eyes of one of these creatures, the mortal enemy of the serpent Nidhogg. The Aztecs decided on the location of Tenochtitlan after seeing one of these animals on a cactus. For 10 points, name this non-vulture bird, one of which eats Prometheus' liver.
In Babylonian myth, King Etana freed one of these creatures so that it would guide him to the plant of birth.
eagles [prompt on birds; do not accept "hawks," "falcons," or any other kind of bird]