Thanks for that. It may be that with their brains and smarts squirrels would make better politicians and IMF heads and would not require $3000 a night hotel rooms. We put grease on the wire leading to the feeder. Yesterday the squirrel "slid" down the wire and we found it slumped on top of the hummer feeder not being able to make it back up. Finally after a lot of contemplation it jumped off (luckily not hurting itself). I wonder if it will learn and not come back.