Brown Hairstreak Chambers Wood

[Lawts]

Are the Brown Hairstreaks at this site considered to be naturally occurring, or were they introduced? I'm just conscious it's the same site of a Marsh Fritillary reintroduction.

[selbypaul]

Here's the official story: https://butterfly-conservation.org/in-y ... ncolnshire

But I suspect nothing is ever 100% certain.

[Lawts]

Thanks.

[cecropia117]

The full story is available in "Butterflies of Lincolnshire - A modern History" by P Cawdell and P Smith