Eagles and thunder-gods often appear together, but in Greek myth the eagle was Zeus’ accomplice as well as his emblem. It stole the beautiful youth Ganymede from his fields and carried him to Olympos to be Zeus’ cupbearer. (Ganymede is also in the heavens, as the constellation Aquarius.)
The eagle also carried out Zeus’ punishment of Prometheus, who stole fire to give to the humans. Zeus had him chained to a cliff face, and the eagle came every day and tore out his liver. Hercules rescued Prometheus as part of his 11th Labour and killed the eagle. Zeus then put it in the sky to reward its faithful service.
The Eagle features among the Hercules family of constellations, by the way, which include large asterisms like Ophiuchus the Snake-Handler as well as tiny ones like Ara, the Altar.
You might wonder, why are salmon wise? Their ability to return to their birthplace to spawn may have given rise to the idea that they had special knowledge. Their travelling between salt and fresh water shows an adaptability most fish don’t have, and their jumping (immortalized in the Celtic warrior’s salmon leap) is impressive, and gives them their English name (from Latin salire, to jump).
In his fickleness and imagination he even gave pleasure to Odin, who with his well-sipping and auto-asphyxiation knew too much ever to be otherwise amused …the reason why Odin had taken the great, foredoomed step of making Loki his blood brother – for the pleasure, pure and simple, of his company. (Chabon: 53)
Odin and Loki are blood-brothers, and we have to wonder what each saw in the other that led to such an unusual partnership. After all, the two are on entirely different trajectories. Odin is trying to get as far as he can from his giant ancestry, to the extent of murdering his own grandfather to make the world. Loki, on the other hand, is constantly pulled back and forth, but usually ending up with the gods, until he chooses the giants for good.
The name Iðavöll appears twice in Völuspá, just after major cosmic events. The first, in stanza 7, follows the meeting of the Æsir where they portion out time, naming the parts of day, and the year. Stanza 6 tells us that the Æsir met at “the thrones of fate”, while 7 starts with them meeting at Iðavöll Plain, and unlike stanza 6, they physically create things, rather than just naming them.
In Norse myth we have two stories involving the theft of a substance that confers a magical benefit to the user. Both involve the thief taking the form of an eagle. Both involve a pursuit with a god and a giant. Of course, the two myths have very different results, although in both cases the final score is Aesir 1, Jotunar 0.
One is the myth of the giant Þiazi kidnapping Iðunn to get the apples of immortality, the other is the story of how Oðin stole the mead of poetry from the giant Suttungr.