Whales & Nightingales - Meanings

Good afternoon, English Experts Team.

Could I translate the following expression "The Sky Whales and the Chime Monster" as "As Baleias do Céu e o Monstro Barulhento"?
It was found in a fictional book.

I have been thinking about it since I found it and so I remembered Judy Collins' album, "Whales & Nightingales".
I could come cross translating it as Baleias & Rouxinóis, but I believe something is strange.

Is there any slang or idiom related to the expression?
If so, could you present some examples and the corresponding translations?

I would appreciate it.

Thanks in advance.
Ricardo.

P.S.: Could you help me with the topic: VOCABULÁRIO EM INGLÊS PARA LOJAS DE MOTO?
Link: Vocabulário em inglês para lojas de moto
Sorry to bother you.