'a flight of birds' is correct and usable in written English. You can use it to refer to a group of birds flying together in a formation. For example, "I watched in wonder as a flight of birds swept across the sky.".
One apparently abstract piece is called "Drawing of a Printout of a Superimposition of a Flight of Birds Upon Itself, Inverted To Determine the Range of Potential Collisions".
She divides the paper into zones and shows us how to avoid the centre, advising us to lead the eye by way of a path or a flight of birds or by contrasting colours.
Most of the dances, though, are for five, and to watch how Sen plays two off against three, and then a different two against a different three, and then maybe one against four, is like watching a school of fish, or a flight of birds, in their maneuvers.
There was a film noir eeriness about the ragged, soaked hair, the makeup and lipstick faded as if by too many kisses, and the black-and-white backdrop comprising a flight of birds, a cat in a window, occasionally swishing its tail, and the shadow of a woman waiting in a doorway.
Rose recalled her father's fury when she tried her own hand at writing, his face "dark as a flight of prophetic birds".
Here, in a series titled Third Person, are lesser stars whose faces are half-hidden by anonymous silhouettes, from the depths of which a third image obtrudes: a garish landscape or an eerie flight of birds.
In 1890, he published a book called The Flight of Birds - a volume the Wright brothers owned - in which pigeons, seagulls and pelicans seem to almost stain the image as they fly across the frame of his haunting "chronophotographs".
Ludwig does not simply clarify my doubts with English writing, it enlightens my writing with new possibilities
Simone Ivan Conte
Software Engineer at Adobe, UK