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Ashdown Forest (Millbrook Hill)

Here we provide all the information we have for each transect site.

For example, clicking on one of the section titles below will display the site description (shown automatically), as well as a list of the species recorded here, and their yearly counts. However, you can also chose to Show All the sections, or even Hide All, if you so wish.

Map of Ashdown Forest (Millbrook Hill)

The map shows you the route that this butterfly transect follows.


County : England(East Sussex)
Gridref : TQ44302970
Year established : 1996
Number of sections : 14
Altitude (m) : 124
Length (m) : 217
Width (m) : 6
Broad habitat : Wet and dry heathland/ dry heather moorland
The following species have been recorded on this site:
SpeciesStatusColonised / ExtinctMean Count 
Essex/Small SkipperStable 1.36 more
Small Skipper? 1 more
Essex Skipper? 0.07 more
Large SkipperStable 12.41 more
Grizzled Skipper? 1 more
Clouded Yellow? 0.32 more
Brimstone? 1.95 more
Large WhiteStable 4.23 more
Small WhiteIncreasing 2.90 more
Green-veined White? 0.74 more
Orange-tip?   more
Green Hairstreak? 1 more
Small CopperIncreasing 2.89 more
Silver-studded BlueDeclining 10.09 more
Brown Argus? 0.32 more
Common BlueStable 1.71 more
Holly Blue? 1 more
Red AdmiralStable 1.54 more
Painted LadyStable 3.13 more
Small TortoiseshellStable 1.89 more
Peacock? 1 more
Comma? 3 more
Speckled Wood? 0.64 more
Marbled White? 0.41 more
GatekeeperIncreasing 87.94 more
Meadow BrownIncreasing 36.89 more
Small HeathIncreasing 30.41 more
RingletStable 1.19 more

This table shows the species that have been recorded on this site. Where sufficient data is available, trends in abundance are assessed and colonisation/extinction events are identified. Click on 'more' to see a plot of abundance through time for each species. See green question mark above for more details.


The UKBMS is run by  Butterfly Conservation (BC), the Centre for Ecology and Hydrology (CEH) and the British Trust for Ornithology (BTO), in partnership with the Joint Nature Conservation Committee (JNCC), and supported and steered by Forestry Commission (FC),  Natural England (NE), Natural Resources Wales (NRW), Northern Ireland Environment Agency (NIEA), and Scottish Natural Heritage (SNH). The UKBMS is indebted to all volunteers who contribute data to the scheme.