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 impact of the Severn oil spill of February 1991 on the populations and distributions of waterfowl
Author: Rehfisch, M.M., Warbrick, S., Clark. N.A., Langston, R.H.W. & Delany, S.
Published: 1991
01.01.91
Reports
The effect of the Cardiff Bay Barrage on waterfowl populations 2. Distribution and movement studies July 1990 - May 1991
Author: Donald, P.F. & Clark, N.A.
Published: 1991
01.01.91
Reports
A historical review of the bird populations of Cardiff Bay
Author: Donald, P.F.
Published: 1991
01.01.91
Reports
Repetition of Historical (Pre-War) Surveys Project Feasibility Study
Author: Evans, A.D.
Published: 1991
01.01.91
Reports
Implications of a 'Greenhouse climate' for British birds
Author: Hudson, R.
Published: 1990
01.01.90
Reports