Cyril Ruoso / European Toad (Bufo bufo) killed during autumn migration to breeding pools, Europe

Cyril Ruoso / European Toad (Bufo bufo) group during autumn migration to breeding pools, exiting an underground tunnel which acts as a wildlife corridor, Europe

Flip de Nooyer / Ruff (Philomachus pugnax) flapping wings during courtship display, Europe

Flip de Nooyer / Sandwich Tern (Thalasseus sandvicensis) flock nesting on ground, Europe

Winfried Wisniewski / Cattle Egret (Bubulcus ibis) flock flying, Europe

Flip de Nooyer / Dunlin (Calidris alpina) large flock landing on the beach, Europe

Flip de Nooyer / Red Knot (Calidris canutus) flock flying over the sea, Europe

Duncan Usher / Red-breasted Merganser (Mergus serrator) flapping its wings, Europe

Flip de Nooyer / White-throated Dipper (Cinclus cinclus) on stone in water fishing, unusual songbird that fishes in streams, Europe

Duncan Usher / European Hare (Lepus europaeus) releases urine when interacting with another, Europe

Jan Vermeer / Wild Boar (Sus scrofa) group of young wild boar running at night, Europe

Jan Vermeer / Sandwich Tern (Thalasseus sandvicensis) hovering, Europe