Julie Williams

Julie Williams - Chief Executive Officer & Company Secretary

Julie joined Butterfly Conservation (BC) in 2000. She was appointed to Director of Finance and Administration in 2003 and took on the additional role of Company Secretary in 2005. In December 2015 she became Deputy Chief Executive, responsible for the non-conservation work of BC, including finance, HR, media, fundraising and marketing. Julie was appointed as Acting CEO in December 2016, which was made permanent in July 2017. She now oversees all aspects of managing the Charity. She has extensive knowledge of charity accounting, governance and marketing in the voluntary sector and holds The Institute of Chartered Accountants’ Diploma in Charity Accounting.

Follow Julie on Twitter - @JulieWilliamsBC


Nigel Bourn

Dr Nigel Bourn - Director of Science 

Nigel has studied butterfly ecology and conservation for over 30 years. His PhD was on the Burnet Moths of north-west Scotland, taken at Aberdeen University. He joined BC in 1995 as a researcher, was appointed Director of Conservation in 2004 and Director of Conservation Science and Policy in 2014. Nigel has published over 150 scientific papers and reports, recently co-authoring a guide on how to manage woodlands for butterflies and moths.

Follow Nigel on Twitter - @NigelBournBC


Sam Ellis

Dr Sam Ellis - International Director

Sam has studied butterfly ecology and conservation for over 25 years, including a PhD on the Northern Brown Argus at the University of Sunderland. He joined BC in 2001 as Northern England Regional Officer, becoming Head of Regions in 2007 and was appointed Director of Conservation and Regions in 2015. He has published over 70 scientific papers and reports and was the lead author of BC’s recently published Landscape-scale Conservation for Butterflies and Moths: Lessons from the UK report.

Follow Sam on Twitter - @SamEllisBC  


Dan Hoare

Dr Dan Hoare - Director of UK Conservation

Dan has a PhD in behavioural ecology from the University of Leeds and has a broad background in ecological studies on birds and fish as well as invertebrates. He joined BC in 2002 on a three month contract and has been with us ever since, working in a variety of roles including South East England Regional Officer and Head of England Regions. He was appointed Director of UK Conservation in April 2019. Dan has extensive experience of developing and delivering landscape-scale conservation projects for threatened species as well as communicating BC's impact to a wider audience.

Follow Dan on Twitter - @DJHbutterflies    


Russel Hobson

Russel Hobson - Director of Policy and Land Use

Russel has an MSc in Rural Resource Management and over 30 years' experience of land management in a wide variety of roles in UK and Eire.  He joined Butterfly Conservation in 1999 as the Marsh Fritillary Project Officer in England and moved to Wales in 2003 as our first conservation officer there.  More recently Russel has been our Head of Conservation, leading on Lepidoptera conservation and policy work in Wales.  For the last ten years he has been a Trustee of Wales Environment Link.