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Bowdown (Baynes/Bomb Site)
The map shows you the route that this butterfly transect follows.
| County: | Berkshire (England) |
| Gridref: | SU508650 |
| Year established: | 1986 |
| Number of sections: | |
| Altitude (m): | Unknown |
| Length (m): | 1750 |
| Width (m): | 6 |
| Broad habitat: | Mature broadleaved woodland |
Species list...
The following species have been recorded on this site:
| Species | Status | Colonised/extinct | Asynchronous | Mean count | ||
| Small Tortoiseshell | Stable | 3 | .1 | more | ||
| Orange Tip | Stable | 26 | more | |||
| Ringlet | Stable | 190 | more | |||
| Silver-washed Fritillary | Increasing | 2 | .2 | more | ||
| Brown Argus | ? | 1 | .4 | more | ||
| Green Hairstreak | ? | 0 | .10 | more | ||
| Holly Blue | Stable | 2 | .2 | more | ||
| Small Heath | Decreasing | 6 | .1 | more | ||
| Dingy Skipper | Stable | Extinct in 1998 | 1 | .7 | more | |
| Grayling | Stable | 1 | .1 | more | ||
| Brimstone | Stable | 19 | more | |||
| White Admiral | Stable | 4 | .4 | more | ||
| Small Copper | Decreasing | 4 | .5 | more | ||
| Meadow Brown | Decreasing | 170 | more | |||
| Gatekeeper/Hedge Brown | Stable | 130 | more | |||
| Marbled White | Stable | 3 | .6 | more | ||
| Peacock | Stable | 74 | more | |||
| Large Skipper | Stable | 11 | more | |||
| Speckled Wood | Stable | 72 | more | |||
| Large White | Decreasing | 31 | more | |||
| Green-veined White | Increasing | 27 | more | |||
| Small White | Decreasing | 35 | more | |||
| Comma | Stable | 13 | more | |||
| Common Blue | Decreasing | 20 | more | |||
| Grizzled Skipper | Decreasing | 3 | .0 | more | ||
| White-letter Hairstreak | ? | 0 | .080 | more | ||
| Purple Hairstreak | Stable | Extinct in 1997 | 0 | .73 | more | |
| Red Admiral | Stable | 6 | .1 | more | ||
| Painted Lady | Stable | 0 | .89 | 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. Species are marked as 'asynchronous' when their trends on this site are markedly different from the national trend. Click on 'more' to see a plot of abundance through time for each species. See green question mark above for more details.
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