Long, low-set dogs with sturdy bone, short legs, and a deep chest, Cardigan Welsh Corgis are powerful workers of deceptive speed and grace. Cardis can weigh anywhere from 25 to 34 pounds, with females at the lower end of the scale. They come in several coat colors, from red to the popular blue-merle pattern. The quickest way to distinguish Cardis from their cousins, Pembroke Welsh Corgis, is to check out the hindquarters: Cardigans have tails; Pembrokes do not.