Great crested grebe (Podiceps cristatus) copulating at the nest, Oldenburger Muensterland, Vechta, Lower Saxony, Germany, Europe

2 animals 2 adult animals adult animal adult animal behavior animal behaviour animal couple animal pairs animal pair animals in the wild animals animal aquatic bird aves behavior behaviour bird's nest bird nest bird photography birds' nests birds bird breeding area breeding grounds breeding ground breeding season breeding site breedings breeding time breeding central europe copulate copulating copulation copula couples couple deserted empty europe fauna female animals female animal females female frg german federal republic germany great crested grebes great crested grebe grebes grebe habitat lower saxony maiting pair male animals male animal males male mate mating behavior mating behaviour mating period mating season matings mating time mating matures mature middle europe natural environments natural environment natural habitat nesting sites nesting site nesting nests nest nobody no one no people northern germany north germany oldenburger muensterland oldenburg muensterland pairing pair of animals pair podiceps cristatus podicipedidae reproductions reproduction republic of germany rutting season sexual intercourse sex social behavior social behaviours social behaviour two animals two uninhabited water birds water bird waterfowl wild animals wild animal wildlife photography wildlife wildlife