Very Common: Found all over the road the Last Stand public event is on. (The public event right outside of Highsteppe.)
Rare: If you take the left exit out of Highsteppe, turn left down Traders Road and at the first fork in the road you should see 2-3 squirrel triggers in the area. Some can also be found sparsely around the Chaos Tear public event.
Very Common: Found all throughout the lower level of Highsteppe, around the dungeon entrance by the bottom of the large tree in Highsteppe, and there is also various spawns by the player stalls throughout the lower level of Highsteppe.