Frigatebirds, skuas, and gulls, often referred to as "pirate birds," have a special trick up their wings. They may be called pirates, but they're not after treasure! These birds chase, harass ...

Frigatebirds skim fish from the surface of the water or chase other birds, forcing them to give up their recent meal ...

WATCH: 'Pirate Birds’ of the TropicsOn this remote island in Costa Rica, a wildlife sanctuary protects nesting grounds for the Magnificent frigate bird, also called pirate birds. Witness the ...