There's something in those trees.
4 seconds sound clip from the Predator (1987) movie soundboard.
You can hear this line at 00:39:57 in the Blu-ray version of the movie.
Quote context
[...]
- Been acting squirrelly all morning.
- That damn nose of his... It's weird.
- Billy... What the hell is wrong with you?
- There's something in those trees.
(distorted) Do you see anything? Up there.
- Nothing.
- I guess it's nothing, Major.
[...]