Identifying subject, verb, and prepositional phrases.
The strangest thing about the bird is it’s colorful plume on top of its head.
Subject:bird
Verb: is Or is colorful?????
PP: on top of its head
subject: bird
verb: is --- colorful is an adjective
3PPs: (about the bird) (on top) (of its head)
looks like you need to review adjectives, and predicate adjectives, and linking verbs.