Flock of birds over ocean at Egmont Key National Wildlife Refuge, Tampa Bay, Florida, USA

Flying ducks

Flock of birds on rocks by water, Chobe National Park, Botswana

Flock of birds feeding on water surface, Seymour, Galapagos, Ecuador, South America

A flock of herring gulls over the sea

Flock of birds in flight

Trafalgar square pigeons

Flock of flamingos (phoenicopterus roseus) flying overhead at dawn, Putzu Idu, Sardinia, Italy

Low angle view of flock of seagulls flying

Flock of flamingos (phoenicopterus roseus) feeding in misty lake at dawn, Putzu Idu, Sardinia, Italy

Seagulls on Second Beach at sunset near La Push, Olympic National Park, Washington, USA

Ducklings waddling in green grassy field

A flock of Pterosaur birds fly over two Diplodocus dinosaurs.

Birds. A flock of seagulls with flying fish.

A flock of Eudimorphodon flying reptiles.

A flock of Pteranodons flying on a Cretaceous night.

A flock of Zhenyuanopterus flying past the mountainside.

A flock of giant Quetzalcoatlus during the Cretaceous Period.

A flock of pterosaurs fly past two Omeisaurus dinosaurs.

An Archaeopteryx observing a flock of migrating pterosaurs.

A Tiger Moth biplane passes through a flock of Quetzalcoatlus pterosaurs.

Trees full of birds from morning to night

A woman walking with a briefcase and birds behind her in the street

A flock of Anhanguera pterosaurs catch fish off a rocky coast.

Flock of birds