Best bait you could use for coons is sardines. Just barely crack the lid and they can't get much out. Then you can keep using a can over n over. If they eat a little out or it dries up just peel the lid back a little more. I've caught 3 to 4 coons on 1 can of sardines. If you were using foot traps I have a great set for coons.... Never heard of someone trapping squirels before....Unless they were just trying to get em outta their yard. Can't help you there.