About three years ago a thread like this inspired me to pick up a good pair (Swarovski) binocular. The VERY first time I took them into the tree with me, I spooked a deer that was coming from the side and saw me moving. I very rarely spook deer (that I'm aware of).
I know, it wasn't the binocular's "fault", it was my technique.
I will occasionally put them in my pack when I'm turkey hunting in case a hen
is trying to hide her beard.
Hunting without binoculars since 1970 I just never developed the habit. Except for incidental scouting while on stand (whitetails), I don't need to and often cannot see beyond close (50-75 yards) range. I don't need binoculars for that.
So, I use them more for looking out my deck door about 300 yards up the lane between two large blocks of forest.
I should probably make myself give them another try. My ears don't pick deer walking at distance any longer, maybe my eyes could use some help "seeing" through thick stuff?