Hitchcockian

A thousand blackbirds in the sky,
Or, that's the way it seemed,
Alit on branches, strangely still,
Like something I had dreamed.

They swooped and covered every tree,
Converging quick, en masse;
Just watching them brought on a chill
That wouldn't quickly pass.

For anyone who's seen "The Birds"
Could never quite forget
The fear that Hitchcock did instill,
Which hasn't left me yet.

Like shadows brought to life, they sat
For just a brief reprieve;
Then all at once, no peep or trill,
They flapped their wings to leave.

Who knows the reason whence they came
Or what was their intent;
But Hitchcock's motive filled the bill
So I'm relieved they went.