As your ship sets sail for an unforgettable tour of the Galápagos, you will likely be accompanied by a squadron of frigatebirds. The larger of the two species inhabiting the islands is the magnificent frigatebird. Their enormous wingspan – ranging from seven to eight feet – is designed for incredible aeronautics. They are capable of riding on thermal air currents for hours without flapping their wings and can stay aloft for days. Do not expect to see them dive into the water like most seabirds. Their feathers are not waterproof so they must catch their prey such as flying fish above the waves. Alternatively, they harass other seabirds to drop or regurgitate their food while soaring midair.