Laysan Albatross - two moms for some chicks

Here's the link to Science Daily's article: Laysan Albatross Employs 'Dual Mommies' I realize it's not even particularly banding related, but it's still fantastic bird research!

On the island of Oahu, in Hawaii, 31% of nests are female-female pairs. Female pairs raise fewer chicks than male-female pairs, but given the shortage of males, fewer chicks are better than none. Since albatross can only raise one chick each year, females stay together for multiple years for each to reproduce.