Past International Ornithological Congresses (IOCongresses®)
Since its inception in the late 19th century, the Union, and its parent organization, the International Ornithological Committee, has held 26 INTERNATIONAL ORNITHOLOGICAL CONGRESS®️ in 19 countries on all livable continents, from Austria in 1884 to Canada in 2018.
- Click here to download a list of plenary speakers at past IOCongresses.
- Click here for a history of past IOCongresses
Location and Dates of IOCongresses 1884-2014 with Presidents and Secretaries-General/Congress Conveners
| # | Year | Location | President | Secretary-General | Documents |
| 1st | 1884 | Vienna, Austria | Dr. G.F.R. Radde | Dr. Gustav von Hayek | Congress Report |
| 2nd | 1891 | Budapest, Hungary | Prof. Victor Fatio, Otto Herman | none | |
| 3rd | 1900 | Paris, France | Dr. Émile Oustalet | Jean de Claybrooke | |
| 4th | 1905 | London, UK | R. Bowdler Sharpe | Dr. E.J.O. Hartert, J. Lewis Bonhote | |
| 5th | 1910 | Berlin, Germany | Prof. Dr. Anton Reichenow | Herman Schalow | |
| 6th | 1926 | Copenhagen, Denmark | Dr. E. J. O. Hartert | E. Lehn Schioler | |
| 7th | 1930 | Amsterdam, Netherlands | Prof. A.J.E. Lönnberg | Prof. L.F. de Beaufort | |
| 8th | 1934 | Oxford, UK | Prof. Erwin Stresemann | Rev. F.C.R. Jourdain | |
| 9th | 1938 | Rouen, France | Prof. Alessandro Ghigi | Jean Delacour | |
| 10th | 1950 | Uppsala, Sweden | Dr. Alexander Wetmore | Prof. Sven Hörstadius | |
| 11th | 1954 | Basel, Switzerland | Sir Landsborough Thomson | Prof. Adolf Portmann | |
| 12th | 1958 | Helsinki, Finland | Prof. J. Berlioz | Dr. Lars von Haartman | |
| 13th | 1962 | Ithaca, NY, USA | Dr. Ernst Mayr | Dr. Charles G. Sibley | |
| 14th | 1966 | Oxford, UK | Dr. David Lack | Prof. Nikolaas Tinbergen | Congress Report |
| 15th | 1970 | Den Haag, The Netherlands | 1966-1969: Prof. Nikolaas Tinbergen | Prof. Karel H. Voous | |
| 1969-1970: Prof. Finn Salomonsen | |||||
| 16th | 1974 | Canberra, Australia | Prof. Jean Dorst | Dr. H. J. Frith | |
| 17th | 1978 | Berlin, Germany | Prof. D.S. Farner | Rolf Nöhring | |
| 18th | 1982 | Moscow, Russia | Prof. Lars von Haartman | Prof. V. Ilyichev | |
| 19th | 1986 | Ottawa, Canada | Prof. Dr. Klaus Immelmann | Dr. Henri Ouellet | |
| 20th | 1990 | Christchurch, New Zealand | Dr. Charles G. Sibley | Dr. Benjamin D. Bell | |
| 21st | 1994 | Vienna, Austria | Dr. Christopher Perrins | Dr. John Dittami | Congress Report |
| 22nd | 1998 | Durban, South Africa | Prof. Dr. Peter Berthold | Dr. Aldo Berruti | View Proceedings |
| 23rd | 2002 | Beijing, China | Prof. Walter Bock | Dr. Wei-shu Xu |
IOCongress report [pdf, 135 Kb] |
| 24th | 2006 | Hamburg, Germany | Prof. Dr. Jacques Blondel | Prof. Dr. Franz Bairlein |
View Proceedings I: Pleanry papers View Proceedings II: Symposia papers Abstract Book [pdf, 2.7 Mb] IOCongress report [pdf, 1.1 Mb] |
| 25th | 2010 | Campos de Jordão, Brazil | Prof. Dr. John C. Wingfield | Prof. Dr. Cristina Miyaki, Prof. Dr. Elizabeth Höfling |
Abstract book [pdf, 5.9 Mb] |
| 26th | 2014 | Tokyo, Japan | Prof. Dr. Franz Bairlein | Prof. Dr. Keisuke Ueda |
Abstract book [pdf, 10.0 Mb] |
| 27th | 2018 | Vancouver, Canada | Prof. Dr. Lucia Severinghaus | Prof. Dr. Robert W. Elner |
Congress abstracts [pdf, 3.3 Mb] |
| 28th | 2022 | Virtual (originally conceived for Durban, South Africa) | Prof. Dr. Dominique G. Homberger | Prof. Dr. Colleen Downs | |
| 29th | 2026 | TBA | Prof. Dr. Fumin Lei | TBA |