In book 3 of The Odyssey, Athena shape-shifts from Mentor, a seeming mortal, into an eagle, right in front of Telemachus, the old king Nestor, and the Achaeans. As Athena flies away, the king is astonished, and Telemachus's status is suddenly elevated. The fact that a young person like Telemachus has the personal protection of Athena means he is a truly special prince worthy of particularly special treatment.
Immediately after Athena's exit, King Nestor and the rest of the Achaeans realize that Mentor was actually the goddess in disguise. As Mentor accompanied Telemachus during their arrival to King Nestor's banquet, the king realizes that the goddess had been there all along. The king summons his queen to begin preparations to honor Athena with a ceremony, as he feels honored to have had the presence of the goddess at one of his own feasts.