KANMURI UMISUZUME is a mysterious bird whose breading ground is BIROUJIMA; an island located about 7km off the coast of KADOGAWA bay. This bird migrates to the island at the end of December and disappears at the beginning of May.
KANMURI UMISUZUME is not good at flying because of its round body, short legs and wings. Instead, it is good at swimming. In fact, Most of the time, this bird stays at sea.
The laying period of the bird is from the middle of March. And the hatching period is from the end of April till the beginning of May. The baby birds start to leave the nest on the very next day they are born. At midnight, they fell down from the top of a precipitous cliff toward the sea, and then go to the journey to the sea.
We estimate that there are about 6000 KANMURI UMISUZUME in the world. And about half of them migrate to BIROUJIMA in KADOGAWA for the reproduction.
This precious bird in the world is now facing an extinction crisis and was designated as special natural treasure in Japan.