The proportion of the Kooiker is off-square. The bone and substance of the Kooiker is moderate. The head should be in proportion to the dog. The expression is gentle and alert. Ears should be red in color and well feathered and ideally adorned with earrings. The color for the Kooiker should be predominately orange-red and may be patched or solid on pure white although a few small spots on the legs are acceptable.