What happens to Snowball during the meeting about the windmill?

In Chapter Five, when building the windmill comes up for a vote, Napoleon calls in a pack of dogs –the puppies he privately educated –who chase Snowball off the farm. Napoleon then assumes control, organizing a committee of pigs who will make all the decisions from now on. Voting is abolished. Squealer becomes Napoleon’s spokesperson, and convinces the other animals of the good reason for forbidding debates. Major’s skull is mounted for viewing by the animals, and chores are now dictated. Napoleon also decides to build the windmill, saying the idea really had been his all along.