50 years of monitoring British moths and butterflies:
Posted: Sat Jul 04, 2015 9:32 pm
a Talk by Martin Warren of BC, could be interesting.
https://www.zsl.org/science/whats-on/wings-of-change
![Smile :)](./images/smilies/icon_smile.gif)
https://www.zsl.org/science/whats-on/wings-of-change