Thanks for your response erchie. The squirrels I'm referring to are in fact the grey ones. There was a time that humans could scare them, but now they seem to challenge you. In fact, they are scaling up and down the side of the house, windows, etc. I've never seen this activity before. They are causing havoc to open areas they find in the roof and chimney. Can I call someone to get rid of them or at least put something out that will chase them away so that they leave me alone? (smile) I don't want to kill them.