The SH1 is an excellent Ornithopter
Created in 2003 By Sean Kinkade, it glides very well with 1.5m wingspan.
Mine still flies very well 9 years later
At the time he flew with a 9.6v NiMH battery and a Speed 300
Today it is easy to put a brushless inrunner motor and Lipo battery
125$ it's a gift