There can be too many squirrels. [:'(]
I had too many at one time and they wood raise sand when the deer came out or atME. They were too noisy. The deer would be more jumpy and would just leave or travel aroundavoid that area all together.
But a few is good. I use them to alert me of things. Shoot I have seen Eagles thanks to the squirrels yackin out.
So the answer is to many is not good, but a few is great. That is unless you makin squirrel PIE!
Dag-burncrows get on my nerves [:@]

Use all of nature for a better hunt and a good lesson in.............................SURVIVAL!!