Several helicopter AERIAL SHOTs of Sass and Marling Rivers, nesting area, including shot of Port Smith airport. CSs of pilot in some shots. MS of Maple Leaf flag flying in wind. MCS of Fort Smith airport building to ZOOM OUT and LS of it. LS to MCS of helicopter landing at Fort Smith airport, crew leaving helicopter carrying portable incubator. MS of helicopter taking off. MCS of small plane propellor turning. LS and MSs of jets taxiing at Fort Smith airport, one of them named "Mackenzie Air". Long side view of jet moving and taking off. (785 ft)