Elkins, N & Joiris, C / December 1975 – vol. 68, issue 12, pp 519–520 The origin of British Aquatic Warblers In his letter (Brit. Birds, 67: 443-444), Dr J. T. R. Sharrock made the hypothesis that the autumn records of Acrocephalus paludicola in Britain and Ireland are probably to be explained by a reverse migration of birds from Italy. On 14th September 1972, I found a dead example of this species on board the Belgian research ship Mechelen in the middle of the ... This article is only available to registered users.To read more, please log in or purchase a subscription.