I'll snip part of the write up ours does:
Externally: Brown Rat (Rattus norvegicus) activity has been recorded during scheduled
inspections to the premises by the way of bait consumption from the in place perimeter
monitors, this included an additional Call Out visit, (13/11/14), due to reported evidence of
Rats harbouring externally, rear of Marinade Room, additional treatment carried out at the
time.
Consumption of bait from external rodent monitoring points was observed. This was
considered to be due to Wood Mouse (Apodemus sylvaticus) activity - non target species
that poses minimal risk to the business as they are an outdoor dwelling species that are
reluctant to enter and remain within buildings and therefore should not be regarded as a pest
species externally. Use of Detex non-toxic indicator blocks to be used for monitoring outer
perimeter monitoring points without risk of secondary or non-target poisoning.
Fly control units
Generally the numbers of flying insect activity recorded from the catch tray analysis shows
increased exterior fly activity through the summer months and may show peaks of day/night
flying insect activity as they tend to migrate into internal areas of the premises.
The category of day/night flying insects caught may give the evidence that at certain times of
the day, doors are remaining open for possibly long periods at a time, (most likely during
deliveries, the moving of stock and taking out waste materials), which is allowing the natural
ingress of seasonal day flying insects, although there maybe periods when doors are
occasionally left open for longer periods and automated doors may help reduce the ingress
of recorded flying insect activity.