Squirrels

[Muskie1]

 I had my Huskie escape a couple days ago, slipped out of his collar, I thought short walk no harness, wrong.. He was found about 4 miles away,  micro chip saved us.
  I no longer drive due to medical issues, so I got on my Rad mini 4, 52 miles on past 1, 2 hour charge another's 40.

My question is why are squirrels attracted to the sound, I know dogs like the high pitch motor noise.  I live in a squirrel rich area my horn, bell do not intimate them.

I left my doors open so I woke up to no dog, a squirrel  on my table, they are pretty friendly,  2 bites got him out.