I see the Elves bond to the world as singular, not default. Therefore, all other creatures are mortal, as Men, and their fëa, or souls, would likely go with them.

I would think all creatures except Men would remain in the circles of Arda. I thought only Men received the Gift of Ilúvatar. I suppose that includes Hobbits, though.

The Hobbits are the branch of Human race, so their afterlife is the same.

The Dwarves have a separate hall in Mandos for their souls, where they can meet Aulë.

Souls of the Ents probably also come to Mandos. Maybe Yavanna takes care of them.

You may like it or not, but the animals in Tolkien's world have no fëar. He pointed that out in some of his letters.

Then Tolkien didn't think that part through, right? He said a few things that made it apparent he didn't have every detail fleshed out as well as he could've. It doesn't make sense for animals in a fantasy world with the ability to speak and reason to not have something like a soul and, therefore, some sort of afterlife. Saying they have no fea /soul is probably that Christian part of him he couldn't help but include.

Ummm... where is it in Tolkien's writings that say animals don't have an afterlife? Also, most of the animals don't speak and reason.

Well yeah, most of the animals don't speak or reason so that would mean the question posed pertains to those who can.

Orcs smarter than they look especially the Captains War Chiefs and Overlords

^ All those titles sound non-canon. Also, this thread is not about orcs.

Who cares respect Orcs

@Fandyllic

"In summary: I think it must be assumed that 'talking' is not necessarily the sign of the possession of a 'rational soul' or fëa." © HoME X, p. 420