Corgi is a shared name for two Welsh herding breeds, the Pembroke and the Cardigan, and the label is also used for corgi mixes. Both are long, low cattle dogs with upright ears and a dense double coat. Pembrokes are usually red, sable or tricolor with a short tail, while the heavier Cardigan keeps a long, brushy tail and can be brindle or blue merle. Adults generally weigh about 22 to 38 pounds.
Their herding heritage shows up as barking, bossiness and heel-nipping, especially in young dogs, which matters on sidewalks full of joggers and kids on bikes. Corgis shed heavily, love food and need daily exercise, but many are lively, devoted housemates. Dogs vary, and a mix may look or act different from either breed.