David Tipling / White-tailed eagle (Haliaeetus albicilla) adult with two Hooded crows (Corvus cornix) Hortobagy National Park, Hungary January

Loic Poidevin / White tailed sea eagle (Haliaeetus albicilla) perched on tree stump with fish. Hooded crow (Corvus cornix) flying in to attack in background. Danube Delta, Romania. May.

Loic Poidevin / Hooded crown (Corvus cornix) flying with egg in beak, Danube Delta, Romania. May.

Loic Poidevin / Golden jackal (Canis aureus) climbing tree trunk to scavenge fish left by Sea eagle. Hooded crow (Corvus cornix) perched at top. Danube Delta, Romania, May.

Loic Poidevin / Golden jackal (Canis aureus) snarling and chasing off Hooded crows (Corvus cornix). Danube Delta, Romania, May.

Loic Poidevin / Hooded crow (Corvus cornix) mobbing White tailed sea eagle (Haliaeetus albicilla). Danube Delta, Romania. May.

Loic Poidevin / Hooded crow (Corvus cornix) perched in tree. Danube Delta, Romania. May.

Loic Poidevin / Golden jackal (Canis aureus) climbing down tree trunk after eating fish left by Sea eagle. Hooded crows (Corvus cornix) out of focus in foreground. Danube Delta, Romania, May.

Loic Poidevin / Golden jackal (Canis aureus) on a tree trunk scavenging fish left by Sea eagle. Hooded crow (Corvus cornix) looking on. Danube Delta, Romania, May.

Robin Chittenden / Hooded crow (Corvus cornix) in flight with snail in bill, Romania. May.

Kerstin Hinze / Hooded crow (Corvus cornix) standing on grass, Vienna, Austria. October.

Kerstin Hinze / Hooded crow (Corvus cornix) flying low, Vienna, Austria. October.