Roy Dennis / June 2020 – vol. 113, issue 6, pp 366 Recent years of reading British Birds, during an era in which field identification sometimes gives way to the DNA profiling of discarded feathers and droppings, have made me glad that I was warden of Fair Isle Bird Observatory in the 1960s. Then I could call a Subalpine Warbler a Subalpine Warbler, while relishing the challenge to nail down the subspecies. The March issue of BB had ... This article is only available to registered users.To read more, please log in or purchase a subscription.