The group actually discovered the target thanks to Finley and just before they were about to move to another tree, Finley stopped the group.
"Wait. Let's not move first. I discover a huge movement on top of the tree right in front of us and I suspect that it is a snow ape."
The wind movement and other things that Finley sensed through the wind and the wood actually gave Finley a little guess.
There should be a lone snow ape over there because the large movement indicated that there was only one ape, not several.
If there were more than one snow ape, the large movement would be more frequent and the tree branches along with the leaves would tremble from time to time.
After meeting the group of several snow apes back then, the group had already discovered some traces and signs of snow apes.
For example, there would be scattered fruits here and there if the snow apes were there.