July 2001 – vol. 94, issue 7, pp 333–335 The British Trust for Ornithology's Waterways Bird Survey has highlighted the rapid decline of breeding Yellow Wagtails Motacilla flava in riparian habitats. Some coastal populations appear stable, but in many areas the decrease has been dramatic. The Lune valley population in northwest Lancashire, for example, has decreased from 38 pairs to four pairs in 20 years. Kevin Briggs, Ian Court and Julia... This article is only available to subscribed users.To read more, please log in or purchase a subscription.