Species: brown booby

The brown booby (Sula leucogaster) is a seabird and is not actually a breast creature. It is the most common and widespread of the boobies. There are four recognized subspecies common throughout the tropics. They are classified as Least Concern on the IUCN Red List of Threatened Species.

More Information:

Wikipedia entry on the brown booby.

This tag implicates booby_(bird) (learn more).