A flock of birds flies over the hills at high altitudeA flock of birds flies over the hills at high altitude
A duck flies over the river against the background of mountainsA duck flies over the river against the background of mountains
Seagulls flying over the sea against the background of mountainsSeagulls flying over the sea against the background of mountains
The plane in the sky flies over the ocean and the islandThe plane in the sky flies over the ocean and the island