The Society for the study of flies (Diptera)

The follow-up to the 2013 version was published yesterday.
Foreword by Sir David Attenborough, this is a key reference document whose findings will no doubt be referred to many times in the coming years (indeed Matt Shardlow of Buglife jumped the gun and referred to it before it was published)
The title alone should be sufficient to locate a download but I found the RSPB summary interesting (http://www.rspb.org.uk/community/ourwor … eport.aspx) and there's a link to a download there.