Passover is the celebration that commemorates the story of the Exodus, in which the ancient Israelites were freed from slavery in Egypt.
The story behind the festival is that God helped the ancient Israelites escape from slavery in Egypt by inflicting ten plagues upon the Egyptians that caused the Pharaoh to release Israelite slaves.
When Pharaoh freed the Jews, the story is that they left in such a hurry that they could not wait for bread dough to rise (leaven). As a result, for the duration of Passover no leavened bread is eaten, and Matzo (a flat unleavened bread) is a symbol of the holiday.
Observe the cartoon and tell your teachers (after reading the post) why you think the birds are complaining.
See the video posted in the Global Calendar.