The flag is inspired by the current Kiribati flag. It represents the discovery of a new land ("new" zealand). The symbols (kiwi, star and fern) and the colors need no further explanation. Credits given to the Kiribati flag designer Sir Arthur Grimble (1932). The kiwi is from: http://tinyurl.com/pjj2fuw and the star with the fern is from: http://tinyurl.com/ncexpkg. I see this symbols are also used in earlier designs but I can't find the name of original creator(s).