Indexing winter gull populations in England, Wales, Scotland and Northern Ireland: an analysis of data from the 1953 to 2004 Winter Gull Roost Surveys
Author(s): Burton, N.H.K., Banks, A.N., Calladine, J.R., Austin, G.E., Armitage, M.J. & Holloway, S.J.
Published: January 2005 Issue No.: 380 Pages: 41pp
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BTO research harnesses citizen science to make breakthroughs in bat monitoring
Bat monitoring has traditionally been challenging, because most species are nocturnal, wide-ranging and difficult to identify. Whilst the National Bat Monitoring Programme run by the Bat Conservation Trust (BCT)...