Provide as many specifics as you can to help better answer your question. Please omit personal information in this area.
Are you within Boise city limits? If so, you might check with the city or Ada county to determine what the rule is regarding discharging a firearm within city limits as I believe shooting an air rifle within city limits is illegal. The eastern & grey fox squirrel are considered unprotected species and may be taken where legal to do so.