Calico sheep is a type of sheep that has more than one colour within its coat.[1] The colouring is due to a piebald mutation, but the calico sheep is not a recognizedbreed.
These sheep tend to be very small due to intensive inbreeding and are often mislabeled as a true breed. Rather, they are mere crossbred sheep that have interesting colour patterns.
Genetics
The calico mutation is due to an autosomal recessive gene, first reported by Roberts.[1]
History
Calico sheep are not related to the black and white sheep that are native to ancient Sudan[2] and to South Africa.[3]