The Airedale is the largest of the terriers, developed in the mid-1800s by Yorkshire mill and factory workers who crossed old black-and-tan terriers with the Otterhound. The result hunted rats, otters and birds, swam well, and later carried messages in World War I. The hard, wiry coat is black or grizzle on top with tan legs and head, plus a beard and folded ears.
Many Airedales are confident, playful and a little stubborn, and they bore quickly, so they need varied training and a daily job. The coat sheds little but needs clipping or hand-stripping every six to eight weeks. In Mesa, that routine pairs with shade, water and a groomer who keeps the coat tidy without leaving the skin exposed to the sun. A strong urge to chase small animals is common.