Kooikerhondje is medium sized dog breeds originating from Netherlands, belonging to sporting dog breeds. they grow to a height of 16 inches and weighs between 20-40 pounds. It has a moderate bone structure. Its coat is smooth, soft and wiry. They are active, well-behaved and curious. Energetic and full of life, they grow aggressive without any activity. They are reserved with strangers. Patient and kind with children.