April 2022 – vol. 115, issue 4, pp 225–229 Donald Ian Mackenzie ‘DIM’ Wallace was a communicator. He had something to share and he was blessed with the tools to do the job. That something was a fascination with birds. Although his enormous contribution to ornithology will be measured by his output of trailblazing articles and several books, as well as chairmanships of powerful organisations, from the RSPB to the British Birds Rari... This article is only available to subscribed users.To read more, please log in or purchase a subscription.