Mille Fleur d'Uccle Bantam Chickens: A Colorful and Charming Addition to Your Flock Mille Fleur d'Uccle Bantams are a delightful bantam breed known for their beautiful plumage and friendly nature. They make excellent pets and are a popular choice for both hobbyists and families. What Are Mille Fleur d'Uccle Bantam Chickens? Originating from Belgiu