Clumber Spaniels are large dogs, but not by height—at 17 to 20 inches Clumbers stand as high as many “medium” dogs. Rather, Clumbers are large by weight: A small female might be 55 pounds, and a big male could go 85 pounds. Clumbers are powerful bird dogs of heavy bone, built long and low, with a massive head. They’re primarily white, with sparse lemon or orange markings. Built to plow through thick cover in the field, Clumber movement is nonetheless free and easy.