Stories about four cats with wings.
Books in the Catwings series:
Thelma, Roger, James and Harriet Tabby were born in a dumpster, but they have wings.
Catwings Return (1989)
James and Harriet Tabby return to visit their mother and return home with a little sister, Jane.
Jane, a cat with wings, rescues Alexander, who is lost and stuck in the top of a pine tree.