Since its inception in 1970 by the Scandinavian Ornithologists´ Union, the journal Ornis Scandinavica gradually became a truly international publication attracting subscribers and contributors from all over the world. To endorse this global perspective the journal´s name was changed to "Journal of Avian Biology" in 1994. Currently, there are 6 issues/year. Journal of Avian Biology publishes empirical and theoretical research in all areas of ornithology, with an emphasis on behavioural ecology, evolution and conservation. Preferably, papers should test hypotheses or explore new grounds. Purely descriptive studies are accepted only when they contain important information that give rise to novel questions and/or open up new grounds.