Ardea is the scientific journal of the Netherlands Ornithologists’ Union, and is published since 1912. The journal welcomes manuscripts reporting significant new findings in ornithology, in particular those covering the ecology, life history, and evolution of birds. Ardea publishes Original research papers, Short notes, Book and Dissertation reviews. In addition to the regular two issues per year, Ardea publishes specials that contain conference or workshop proceedings (produced on request).
Volumes 1–8 were published from 1904 to 1911. In 1912, volumes numbers were restarted at 1.