Reports

Reports

BTO publishes various reports, from those covering the annual results of core surveys, through scientific studies, and on to those produced in partnership with other organisations. Many of these are published as BTO Research Reports, which includes BBS reports, Waterbirds in the UK (WeBS) reports and SMP reports. You can access all of our reports from here, though note that we are currently updating the reports section, working backwards through time to bring all of the report pages into a consistent format. You can read our Annual Report and Accounts in the Governance section.

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How high do birds fly? A review of current datasets and an appraisal of current methodologies for collecting flight height data: Literature review

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Published: 2015

The height at which seabirds fly is a key factor in determining how these birds interact with offshore wind farms. Of particular interest is the need to accurately predict flight heights, in order to feed these data into the predictive 'Collision Risk Models' used to identify the potential impacts of wind farms on seabird populations. Flight height data have traditionally been generated volunteer observers in boat surveys, but different methods are now being used to estimate the flight heights of birds. The relative suitability of methods estimating flight heights had not been rigorously appraised. This report details and compares the different methods for estimating flight heights, evaluating the relative merits and disadvantages of each method.

16.08.15

BTO Research Reports

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The Breeding Bird Survey 2014

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Published: 2015

The is the 20th annual report of the BTO/JNCC/RSPB Breeding Bird Survey (BBS), containing the population trends of widespread UK bird species during the period 1994-2014

20.07.15

Reports BBS Report

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Waterbirds in the UK 2013/14

Author:

Published: 2015

Waterbirds in the UK presents the summarised results of the annual WeBS report, and full data available via the WeBS Report Online. It provides a single, comprehensive source of information on the current status and distribution of waterbirds in the UK for those interested in the conservation of the populations of these species and the wetland sites they use.

01.04.15

Reports Waterbirds in the UK

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