Personification is giving humanlike qualities to an animal or object. "bullies" is another word for a human being, so "Bullies are chickens" is not an example of personification. But "Chickens are bullies" is such an example.
Metaphor is a comparison of two unlike things using a form of the verb
to be, not the verb
like or the word
as. For example, "Bullies are chickens" could be deemed an example of a metaphor, but in that context "chicken" isn't referring to another thing, an animal; it's referring to a concept: A chicken is another name for a person, a person who is afraid of something or afraid to do something.
Hope that helps.
metaphor? 
Linear Mode
