11/06/2026
A population of rare Small Pearl Bordered Fritillary butterflies has been confirmed on DPA owned land at High House Waste. Our Ecological Consultant, Albert Knott, spent a day on the land last week surveying for the presence of these butterflies, and was delighted to record substantial activity. As well as seeing fritillary butterflies, he also saw multiple Keeled Skimmer dragonflies emerging from the mire habitat. The confirmed presence of these species further underscores the vital importance of the mosaic of moorland habitat, including mires, at High House Waste.
As an adult, Small Pearl Bordered Fritillary butterflies consume nectar from spring flowers including bramble and thistle, flying low to the ground in a distinctive flutter and glide pattern. They can be identified by their striking orange colour, with black marks on the upperside of the wings and black and silver markings on the underside. They also has a distinctive row of seven ‘pearls’ on the outer edge of each wing. The caterpillars feed exclusively on violets (both marsh violets and also common dog violets) and require an ample food source growing near a thatch of bracken, which helps to keeps eggs and caterpillars warm as they develop.
Our refreshed land management plan for High House Waste acknowledges the importance of mires and seeks to improve the health of this habitat on site. We plan to further clear gorse from around the edges of the mires, opening them up and allowing light in so that marsh violets can flourish in these areas. Under the guidance of Albert Knott, we will carry out this work during the autumn and then survey the area again next spring, looking for evidence of Small Pearl Bordered Fritillary butterflies and their food plants.
📷 Albert Knott