Local Wildlife Site

Accessible Sites of Importance for Nature Conservation

The Warren
Borough: Bexley
Grade: Borough Grade II
Access: Free public access (all/most of site)
Area: 4.83 ha

Description

This site is a small area of ancient woodland and an associated area of acid grassland. Its name is believed to originate from a period in the 16th century when rabbits were kept for sale in the area. The Shuttle Riverway walk passes though the site.

Wildlife

The woodland canopy is dominated by oak and elm trees. The ground layer is dominated by bramble, and also contains bluebell, stinking iris and wood anemone. The woodland supports an abundant population of the purple hairstreak butterfly, which can be seen flitting around the tops of oak trees in mid-late July. Some green alkanet was recorded within the woodland in 2016. The acid grassland contains small populations of parsley-piert and hare's-foot clover. Bird's-foot and common stork's-bill were previously recorded on the site, but not found recently. The site attracts a variety of birds that feed on the abundant insects here and in winter redwings and fieldfares use this area for feeding. In 2016 the grassland was degraded and locally eroded as a result of heavy use, and protection is needed to ensure the survival of acid grassland species at the site.

Facilities

Walking route
Purple hairstreak butterfly © Stephen Frank

Purple hairstreak butterfly © Stephen Frank

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Find out more

More information on GiGL’s SINC dataset can be found here.

Additional information, including other site designations and species recorded onsite and nearby, can be provided in community and client data search reports. Request information here.