The Adventure Summit, a two-day outdoor expo, will take place Friday-Saturday, Feb. 20-21, at Wright State University. It's sponsored by Five Rivers Outdoors, the awesome initiative of Dayton's city park system. Look for full coverage in tomorrow's Venture column. Participants in the Great Backyard Bird Count spotted millions of birds. To see what was found in Ohio, check out this interactive map. Columbus Outdoor Pursuits will lead a hike at Highbanks Metro Park at 1 p.m. on Saturday, Feb. 28. Plan on four to six miles. My friends at Get Out!, an online adventure 'zine, took a great trip to Mammoth Cave National Park. Story and photos here.