The Golden Retriever is a medium-large gun dog that was bred to retrieve shot waterfowl, such as ducks and upland game birds, during hunting and shooting parties. Therefore, 'pure white' and 'red' are unacceptable, as is black. The Kennel Club (UK) also permits cream as an acceptable coat colour. Judges may also disallow Goldens with pink noses, or those lacking pigment. The bloodline was also inbred and selected for trueness to Marjoribanks' idea of the ultimate hunting dog. His vision included a more vigorous and powerful dog than previous retrievers, one that would still be gentle and trainable. Russian sheepdogs are not mentioned in these records, nor are any other working dog breeds. The ancestry of the Golden Retriever is all sporting dogs, in line with Marjoribanks' goals. It took another 14 years for the breed to be recognized in America, and in 1925, the American Kennel Club did so.