I came home from school 1 day and there was feathers everywhere around my room. I dont have a bird though. My cat wasn't in my room and my windows were closed, as well as my door....WHERE DID THE BIRD GO????!!!

Check your closet, under your bed, behind your dressers/nightstands, etc.
SEARCH THE ROOM.

Oh that birds still there!
watching.......and waiting........you should be careful!

That's scary. Check your closet, under your bed, your drawers, and, well... EVERYWHERE!

still now

This may seem odd, but what did the feathers look like? Do you own a feather pillow? ....having asked that, it could be someone opened your door while you were gone. Be sure to alert and ask everyone in your home about it! Check EVERYWHERE. literally. You dont want to suddenly smell something horrid, and not be able to find a dead bird..or worse find it! pets question and answers,www.5d2d.com
Its possible your cat may have eaten it, or that it came in through an attic access, or like I said someone had your door open earlier...etc.
Im sorry you had to come home to this, I hope it gets resolved without too much stress!!
Good Luck! <3