Great crested grebe in action 28. May 2021 by B. A. Leave a comment Filed under: Nature & Animals Great crested grebes are enchanting-looking water birds and certainly one of the most popular photo opportunities for nature photographers. However, especially during the mating season, these elegant birds can also become extremely uncomfortable with one another. Photos were taken with the Pentax K3 III and the Pentax 150-450 mm F4.5-5.6 in Berlin Spandau.