Chalkhill Blue Lysandra coridon 2003 Species Champion report The following is an extract from the report produced by Nick Bowles

Chalkhill Blue Lysandra coridon 2003 Species Champion report The following is an extract from the report produced by Nick Bowles.
General situation The Chalkhill Blue has been scarce but relatively stable for some 10 years within the UTB area, as it is almost exclusively confined to Nature reserves (private and public access sites) and as a consequence receives a fair amount of sympathetic treatment. The maps for the last two surveys show approx 6 separate areas containing interlinked colonies. They also show more records distant from the main colonies in 95-00 and an observable increase in the number of butterflies observed at several sites (shown by yellow dots becoming orange and red). However the number of ‘larger colonies’ (red dots) is relatively stable. There are 19 more dots in the second survey, almost certainly reflect increased colony size (rather than new colonies), given their positions. These colonies remained at their larger sizes into 2003, when the flight period was typified by hot, settled weather, but seemed slightly smaller than during their best years.
Distribution 1987-93	Distribution 95- 2000

General situation