Graham Appleton / April 2020 – vol. 113, issue 4, pp 229–230 Mark Rehfisch, an ecological consultant and former Director of Development for the BTO, died on 8th October 2019. He will be particularly remembered for his work on waders and climate change.Mark was a birdwatcher from childhood; as he grew up, his approach to ornithology became underpinned by science. As he said in one of those strange pro-forma interviews that becomes an online profile: ‘... This article is only available to subscribed users.To read more, please log in or purchase a subscription.