A Pair Of Podiceps Cristatus Birds During Mating Season. Wuhlesee, Berlin, Germany Stock Photography

Waterfowl in Germany. A pair of Podiceps cristatus birds during mating season. They stand vertically in the water, in a penguin pose, holding bundles of algae in their beaks and offer each other as a gift. The great crested grebe, Podiceps cristatus, is a member of the grebe family of water birds noted for its elaborate mating display. Wuhlesee, Berlin, Germany