Other sites relating to Portsdown Hill, or conservation, that you may be interested in:
Local Links:
Geology site for Portsdown Hill:
http://www.bbm.me.uk/Portsdown/index.htm
A site about the tunnels that run through Portsdown Hill:
http://www.portsdown-tunnels.org.uk
Ecological links:
English nature, report on "Lowland Calcareous Grassland: a scarce and special habitat"
http://naturalengland.twoten.com/naturalenglandshop/docs/IN6.1.pdf
Flora Id:
http://www.bioimages.org.uk
Butterfly ID:
The local 'Hampshire and Isle of Wight Branch of Butterfly Conservation', and
national Butterfly conservation, respectively:
http://www.hantsiow-butterflies.org.uk.
http://www.butterfly-conservation.org/species/index.php
Moth ID:
"Hants Moths" - a page devoted to moths in Hampshire:
http://www.bike2nature.co.uk/
(With thanks to Mike, for identifying my moth images :-) )