I think you did really good this was a really eye opening topic really the only thing I have to say is you might want to change to summarize to to conclude it sounds more appealing other than that I don't really have any corrections.
Well it sounds like the "she" in the story is a cat because it says she falls asleep in the sunlight. Cats tend to fall asleep in windows and in the sunlight. Cats also migrate from place to place to find a comfortable to rest. Lastly, it states that she might find a mouse. Cats chase and catch mice, too! Hehe hope this helps you! :)
Something is certain to happen or informally, one would expect (predictable)