Winged Cats

The mother cat does not know why her four kittens were born with a pair of wings on their backs. But she believes it is a good sign.

Time comes, the kittens set out to find their way in life and one day realize that they can fly.

However, neither the winged nor the four-legged animals they encounter along the way trust these mysterious winged cats.

However, as it turns out, the children from the neighboring farm have loving and kind hands.
Le Guin created a series of books about winged cats in 1988, already being a well-known science fiction writer. 
More details: https://www.labirint.ru/books/452756/