The video shows a large flock of birds flying in the sky. The birds are black in color and are flying in a tight formation. The sky is cloudy and the sun is setting, casting a pinkish hue on the horizon. The birds are flying over a body of water, which is visible in the foreground. There are no visible landmarks or other objects in the video. The birds are moving in a coordinated manner, suggesting that they are migrating or traveling together as a group.