A few more less.
Often I'm only asked to trap one or two problem fields instead of the whole farm. Jobs like this mean I try to keep working in a small local area visiting 3 or 4 farms in the day. On this job I started at 4.00pm the previous day and put 15 traps in this field. 11 moles were caught the overnight and I went on to set more traps which resulted in another 16 whilst I was still in the area.