This photo was taken in Wissel Zoo in Epe, The Netherlands.
Canon PowerShot S5 IS

A group of Pink-backed Pelicans (Pelecanus rufescens) was into courtship and mating rituals. Most other Pelicans crowded on (and next to) big nests on trunks of fallen trees (on water), occasionally spreading their wings and making courting gestures with their heads and necks.

This particular Pelican, however, was busy showing-off in the water, forcefully flapping its wings every few minutes, making an impressive water-show (maybe in an attempt to impress and attract a prospective mate ;-).