The sentence that has illogical comparison is the second example - A parrot's feathers are more colorful than a parakeet.
It should be ... than a parakeet's.
Answer:
Academic writing is writing with an educational purpose. It can differ from personal writing by being purely honest, and filled with statistics supporting your statements or theories. Academic writing audiences are commonly those who are interested or trying to learn new ideas or read about new theories, whereas writing to a friend can be filled with inside jokes or funny slang that you wouldn't typically include in academic writing.
Grammar, spelling, pronounciation and vocabulary.
