She is maybe a week old, so yes, she is a bottle baby. Here eyes are partially open, and she is a really good eater. That's always a great sign. If they don't latch on well, it's always an issue getting enough food in them. She just downed a half an oz, and is sleeping now. I will give her another shot at the bottle in a few hours.
I think her story is someone found her, and waited to see if a mama would come back and get her. After a while it was apparent she was alone, they took her in, and got her to the shelter. I assume we will eventually get a "friend" for her once she is a little older, as singleton kittens don't do well socially. (That's how we got Bishop...Ripley was a terror as a singleton.)
Oops. Looks like she is awake again. Might as well see if she wants another go at that bottle!