Who witnessed Zeus sending a good omen to Odysseus?

In Homer's "Odyssey," the character who witnesses Zeus sending a good omen to Odysseus is the swineherd Eumaeus. This occurs when Odysseus, disguised as a beggar, is in the company of Telemachus and Eumaeus. The omen takes the form of an eagle carrying a trembling dove, which is interpreted as a sign of divine favor and protection for Odysseus as he seeks to reclaim his home and family.