I enjoyed reading this aloud to my 4-year-old son who loves cats and he liked it enough to have me read it a couple of times and then to decide to be a winged cat for Halloween. He did have some questions about why the mother cat seems so willing to let her kittens go and to re-breed so quickly, but once we talked about the fact that that is how real cats are, he seemed fine. In most books for children, talking animals tend to also have other human characteristics, such as being sentimental parents. In this book, the animals are not anthropomorphized beyond being able to talk to one another. So owls and dogs are dangerous to cats and cats are shy of humans. In retrospect, given the themes and realism, I probably would have left this book until he was a little older, maybe 6.