The flag for Kiritimati— Christmas Island of the North — is loosely based upon the flag of Christmas Island of Australia. However there are several differences. First, the central disc has the outline of Kiritimati. In the bottom half, the national bird of the Kiribati is flying in the lower red half, which is the frigate bird. On the upper blue half is the 'Northern Cross Constellation' which is within the constellation of Cygnus. Additionally a seven pointed star near the fly represents the star Vega, which was made popular in movie Contact 1997.
The islanded nation of Kiribati is a geographic wonderland, since it sits at the cross hairs of geography. Kiribati straddles the equator and 180th Meridian, which is the opposite of the Prime Meridian. Likewise the island of Kiritimati translates to Christmas Island. Many older maps retain this name.
Interesting aspect about Christmas Island of the North is that it has cities names Poland, Paris, London and every one's favorite name for a city... Banana.