Giant Runt

The Giant Runt is a breed of pigeon developed by selective breeding primarily as a utility and exhibition breed. American Giant Runts, along with other varieties of the domestic pigeon, are all descendants from the rock pigeon ("Columbia livia").
The breed is known for its large size and suitability for squab production.
Origin.
The Giant Runt was developed by crossing the original Runt with several other varieties. The American Giant Runt was the result of US breeders seeking a wider, more compact bird denoting power and body mass. A related breed is the American Giant Rumbler which is a further development. Both varieties are recognized in the United States.