Hi Lauren! In Ilbk24.314 there is an eagle, probably a different eagle from the Prometheus eagle so I marked it up as a character under it's name: The Black Eagle. It is Zeus' eagle and it is a participant but I just wanted to show you why so here is the Greek:

IL.24.315 [20αὐτίκα δ'14] αἰετὸν ἧκε τελειότατον πετεηνῶν20]
IL.24.315 Straightway he sent down the most lordly of birds, an eagle,

IL.24.316 μόρφνον θηρητῆρ' ὃν καὶ περκνὸν καλέουσιν.
IL.24.316 the dark one, the marauder, called as well the black eagle.