Dr John Mather of the YNU (Yorkshire Naturalists Union) is visiting from Knaresborough to give a talk with slides he calls "The Bird on the Bench". He's an enertaining speaker; I heard him at the BTO (British Trust for Ornithology) conference last autumn in Leeds.
John has been a long term ringer, specialising in Starlings, and studying their ectoparasites.
He also wrote "The Birds of Yorkshire", and preserves birds as drawer specimens for plumage studies.
I passed on to him the male Common Scoter that Andy Cockroft found which he has offered to bring back in its preserved form, as well as a Waxwing.