Exquisitely illustrated by American wildlife artist, Shelley K. Shaw, and filled with fun bird facts, authors William Armitage and Wendy Barry bring you the (mostly) true story about the real-life friendship between the Potters and a catbird who turned up in their garden every morning waiting for a croissant crumb.      “Yes. I was right. There it is—the gray catbird!” Mr. Potter declared pointing to a picture in the bird book. “Known  for making over one hundred different sounds including a noise that sounds like a cat crying! And they’re very friendly around humans.”    “Well, if he comes back, we’ll call him CB—The Friendly Catbird then,” said Mrs. Potter who liked to name things.     Mr. Potter looked at his croissant and smiled.    “He seemed to really like the croissant crumb I gave him. So maybe it should be CB—The Croissant Bird instead!”