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Avon Gorge 2

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 Avon Gorge 2

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


County : England(Avon)
Gridref : ST560730
Year established : 1977
Number of sections : 11
Altitude (m) :
Length (m) : 3786
Width (m) :
Broad habitat : Mature broadleaved woodland
The following species have been recorded on this site:
SpeciesStatusColonised / ExtinctMean Count 
Essex/Small SkipperStable 5.01 more
Small SkipperStable 3.31 more
Large SkipperStable 8.72 more
Clouded Yellow? 0.04 more
BrimstoneDeclining 4.71 more
Large WhiteDeclining 13.48 more
Small WhiteDeclining 9.53 more
Green-veined WhiteStable 26.22 more
Orange-tipStable 2.30 more
Purple HairstreakDeclining 1.03 more
White-letter HairstreakStable 0.51 more
Small CopperStable 0.48 more
Brown Argus? 0.36 more
Common BlueStable 5.99 more
Holly BlueStable 4.68 more
Red AdmiralStable 3.51 more
Painted LadyStable 0.92 more
Small TortoiseshellDeclining 8.61 more
PeacockStable 39.74 more
CommaStable 8.23 more
Silver-washed FritillaryStable 1.59 more
Speckled WoodDeclining 249.18 more
WallDeclining 0.48 more
Marbled WhiteIncreasing 5.61 more
GatekeeperStable 22.10 more
Meadow BrownStable 86.91 more
Small Heath? 0.20 more
RingletIncreasing 6.43 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.