When Fork was talking to Halictus she asked him if he was one of the following: a supernatural being, a hunter, a changeling, seelie, unseelie or gentry. I know what hunters are but I'm not sure about the others. Could you explain all the different supernaturals that are in your story? Sorry to be a bother I'm not very well-versed in all the supernatural beings that exist.
There are...a lot of supes! :D
Seelie, Unseelie, Gentry, and Changeling are all different types of Fae
Seelie and Unseelie are pretty generic fae; trolls, goblins etc fall under Unseelie whereas, Pixies, Nixies, etc fall under Seelie.
Changelings are those who go to the real world and replace a person who has been taken by the Gentry so that nobody notices the disappearance.
Gentry are essentially the nobility of the Fae. Those of a higher class who can do p much whatever they want.
Vampires also have a part in my story and they have various types and subtypes to themselves as well.
Here is a rather long document that describes different types and the hierarchy and terms involved with vampires.
Mages are as written. Berries with magical powers whether through bloodlines or gaining the magic themselves through training.
Ghosts are ghosts. Those who have died but have unfinished business, whether that be good or bad. They can haunt people, cause trouble, and be seen by certain people. They can choose to be seen by everyone or not at all.\
Ghouls are those who have died and come back after making a deal with their Keeper. This will be explored more in Gen 6.
Demons are not inherently good or evil. The name does not mean anything in the grand scheme of things. They are entities of great power, both magical and physical.
I also count Dreamwalkers as a Supe but we know ALL about them.