The KVMR Celtic Festival, now in its 16th year, will bring world-class musicians, medieval reenactments, an Irish pub, a tall-mast sailing ship, the Celtic marketplace and animals of the Celtic lands to the Nevada County Fairgrounds next weekend. “The animal exhibits have proven to be among the most popular aspects of the festival. The kids especially love to see the beautiful birds of prey, wolfhounds, sheep dogs and ponies,” said festival producer John Taber. Featured this year are the border collies and “mule” sheep of the Flying Mule Farm, Irish wolfhounds brought by the Northern California Irish Wolfhound Club, birds …