This site shows data from January 2008 through to the last week of July 2025 (Week-31).
There are two light traps in use at Pitsford Reservoir Nature Reserve. One is adjacent to the reservoir and has reeds and grassland nearby. The 2nd is situated in light woodland. The traps are about 50 metres apart.
Estimates of the effective range of a light trap vary from around 20 metres to in excess of 800 metres depending greatly on the phase of the moon and light pollution. It's also worth noting that although many moths are attracted to light, not all of them are, and the effect of light on each species, and even individual moths within a species varies.
Having trapped the moths overnight the date and the number of each species found in the trap are recorded and the moths, having spent a comfortable night nesting in cardboard eggboxes, are then released.
