What kind of bird is this?

The three shaggy-coiffed birds you see here are Dalmatian pelicans splashing about in Greece’s chilly Lake Kerkini. These waterfowl are among the largest freshwater bird species in the world, with wingspans stretching to as much as 11 feet. Dalmatian pelicans generally breed during the first four months of the year, building their nests on or near the ground, and sometimes upon vegetation floating in the water. While breeding, they form monogamous pairs, though they generally don't pair up for life.
© Guy Edwardes/Minden Pictures