The celebration starts at 6:30 a.m. with a guided birdwatching walk, then a wildflower/bird walk at 8 a.m. Other activities, designed for all ages, will include building of Bluebird houses and two live bird presentations by Raptor Education Group, Inc. at 10 a.m. and 11:15 a.m. Hosted by Chequamegon Bird Club, sponsors include Friends of Downtown Medford, U.S. Forest Service, Taylor County Sportsman’s Club, and Medford County Market.