White humpback whale 'Migaloo' spotted off Australia

A white humpback whale, called "Migaloo" by whale watchers, surfaced once again near Sydney, Australia.

The rare albino whale is seen during his annual migration voyages. Researchers said there are just a few albino humpbacks in the ocean- and this is the third time year in a row he's been spotted.

Migaloo was first noticed in 1991. He's probably in his 20s, according to researchers.