The caged bird is symbolizes of a slave, or basically anyone that does not have freedom.
Answer:
This scene signals a major change in the plot of Animal Farm because at this point of the story it is revealed that Napoleon has started to be corrupted as he seizes power from Snowball using violence. Napoleon also wants to rewrite history as he convinces the other animals that he is doing them a favour by taking up the position of the leader on his own. He also tries to convince them that he is better than Snowball and he presents the facts in the way he wants in an attempt to rewrite history. This scene is the climax of Animal Farm. Napoleon's seizing of power seems to be what he always wanted to do and in this scene he finally manages to do it, thus revealing his true self. The worst part is that he tries to present his actions as legitimate and in the end he convinces the other animals that his behavior is acceptable.
Explanation:
I am pretty sure it is because they thought they where not big enough to fight him so they where afraid...
