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. 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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The BTO Barn Owl Monitoring Programme: 2nd report: second year 2001
Author: Beaven, L.P., Leech, D.I., Shawyer, C.R., Balmer, D.E. & Crick, H.Q.P.
Published: 2002
01.01.02
Reports
The Breeding Bird Survey 2001
Author: Raven, M.J., Noble, D.G. & Baillie, S.R.
Published: 2002
01.01.02
Reports BBS Report

Reviewing the impact of agency permissions and activities on bird populations in SPAs Level 1 interpretation. + Appendices
Author: Armitage, M.J.S., Burton, N.H.K., Atkinson, P.W., Austin, G.E., Clark, N.A., Mellan, H.J. & Rehfisch, M.M.
Published: 2002
01.01.02
Reports
The effect of the Cardiff Bay Barrage on waterbird populations 13. Disturbance and movement studies August 2001 - May 2002
Author: Burton, N.H.K., Rehfisch, M.M. & Clark, N.A.
Published: 2002
01.01.02
Reports
Pilot work to assess bird occurrence and abundance on BBS squares within ESAs
Author: Noble, D. & Newson, S.
Published: 2002
01.01.02
Reports