Meek, E / April 1986 – vol. 79, issue 4, pp 155–170 The Merlin Falco columbarius is the only widespread breeding raptor in Britain whose numbers have continued to decline in recent years. The causes are not obvious, and may vary from one part of the country to another. The species has been studied in Northumbria for many years, and in an earlier paper (Newton et al. 1978) we gave information collected on numbers, nesting success and other aspects u... This article is only available to registered users.To read more, please log in or purchase a subscription.