The Catwings books by Ursula K. Le Guin seem so appealing. Kittens with wings! There they are in S.D. Schindler's pen-and-ink drawings, perched on a branch of tree or curled up beside their mother ("How is the milk this morning, children?" she asks them, which I loved). "A small gem of a book," says PW. "A lovely, gentle fantasy," Horn Book. "Contemporary and timeless," New York Times Book Review.
Be that as it may, bookstogether is here to tell you that if you have a sensitive child, perhaps one who just started kindergarten this very day, you may not make it past the place where Mrs. Tabby says to her kittens, "I think you are ready. I want you to have a good dinner and fly away--far away." Because they're not ready. And neither are you.
[See also Rumer Godden's A Kindle of Kittens (illustrated by Lynne Byrnes; Viking, 1978), which is a sort of cautionary tale for single cat mothers. We didn't read that one, either. But it may interest you to know that the verb to kindle can mean to give birth, and a kindle is the collective noun for--kittens! Probably not what Amazon had in mind.]