My kids are into other things (such as marine mammals, which are in short order in the center of the country!), but there are some programs for kids who are into birds around here and I wonder if there might be something similar close to where you live. For instance, the Rocky Mountain Bird Observatory has classes for homeschooled students: http://www.rmbo.org/v2/web/Education/co_homeSchool.aspx

and the Rocky Mountain Raptor Program, which rehabs birds of prey, allows kids aged 11 or so and up to volunteer with a parent supervisor. Do you have a raptor rehab program locally where you could check into volunteering?