The Wubbulous World of Dr. Seuss 1x19

Thidwick is so excited...it's his birthday, and just like every other year, the Birthday Bird will take him (and all of the other birthday celebrants) to Katroo for a huge party. But when word comes that the Birthday Bird is unable to make it this year, Thidwick decides to take charge and lead everyone to Katroo himself...disguised as the Birthday Bird!