Members of Girl Scout Troop 207 present the colors at the annual Arbor Day celebration, Hurlburt Field, Fla., April 27, 2011. Arbor Day is an observance that encourages the planting, care and preservation of trees. This year, Hurlburt Field dedicated a 375-year-old Longleaf Pine tree located at the intersection near the base clinic. (U.S. Air Force photo by Airman 1st Class Caitlin O’Neil-McKeown/Released)