We regularly run a mercury vapour moth trap in our garden and record the larger (‘macro’) moth species and numbers that arrive. Over the years we have seen both the total number of species and of individual moths steadily increase.
Grey Birch Moth
This we were sure reflected our sympathetic conservation management. In 2012 however we recorded fewer species and moths than in nearly every year since we moved here 12 years ago. Even so we did find a few new species, Grey Birch arrived in the trap for the first time in the Spring, and at the end of May several of the day-flying Small Yellow Underwing were in one of our fields. Though I am sure these have been around in previous years but overlooked as they are very small and also flighty.
Small Yellow Underwing Moth