Welcome to the Bed and Biscuit by Joan Carris
A sweet story for younger elementary school children about a retired veterinarian named Grampa Bender who now runs a boarding kennel with the help of his animal family of a young cat, a mynah bird, and a pig. When Grampa comes home with a mysterious bundle and begins devoting all his time to that bundle instead of his three animal companions, they feel jealous and left out, especially Milly the cat. Each of the three animals has his or her own unique personalities and the story has some adventure and mystery to it with a happy ending. There are two sequels I also recommend, called Wild Times at the Bed and Biscuit and Magic at the Bed and Biscuit.