Ralph Martin/ BIA / Oldworld Swallowtail (Papilio machaon) wing, Baden-Wurttemberg, Germany

Thomas Hinsche/ BIA / European Bee-eater (Merops apiaster) pair squabbling, Saxony-Anhalt, Germany

Thomas Hinsche/ BIA / European Bee-eater (Merops apiaster) pair, Saxony-Anhalt, Germany

Willi Rolfes/ BIA / Pink Lady Slipper Orchid (Cypripedium calceolus) flowers, Lower Saxony, Germany

Christof Wermter/ BIA / Demoiselle Crane (Anthropoides virgo) parent with chick, Germany

Jan Wegener/ BIA / Grey Heron (Ardea cinerea) spreading wings on frozen lake, Berlin, Germany

Konrad Wothe / Common Merganser (Mergus merganser) mother with chicks, Upper Bavaria, Germany

Ingo Arndt / Purple Heron (Ardea purpurea) pair courting and building nest in reeds, Germany

Ralf Kistowski/ BIA / Beautiful Demoiselle (Calopteryx virgo), North Rhine-Westphalia, Germany

Peter Schwarz/ BIA / Oldworld Swallowtail (Papilio machaon) butterfly, Hesse, Germany

Thomas Harbig/ BIA / European Robin (Erithacus rubecula), Saxony, Germany

Ralf Kistowski/ BIA / Common Kingfisher (Alcedo atthis) parent spreading wings near fledgling, North Rhine-Westphalia, Germany