Patience is a virtue and that's what Joe & Blue learn to do.
This plot summary is incomplete. You can help Blue's Clues Wiki by completing it.
This episode introduces Baby Bird, who will be seen in several future episodes. Baby Bird is important enough for the voice to merit a character credit, rather than being credited as one of Joe's Friends.
In the Mailtime Segment, done to pass the time after we've already solved the clues but are still waiting for the egg to hatch, Mailbox tells Joe that he's been waiting patiently to give him a letter.