One strategy for Angry Birds Sakura Ninja level 6 (from Fuji TV) is to fire the first Red bird through the left side of the first structure, popping both pigs. Then snipe the other two pigs with lofting shots. The score in the video below is 41,420.
Check out our walkthroughs for all the various Angry Birds web-based mini-games. If you have a different strategy feel free to leave a comment below; however, don't just post your score.
I know how to get the feather. Just fire the can of sardines on the first hole of the first pagoda.