Each year a comprehensive report, free to members, on the status of birds in the region is published.

Every year a book with the ten finalist stories is published.

Then, every year from 1949 until 1992, six volumes of six issues each were published.

He estimates that it was about 2006, the year both reports were first published.

Since 2007, every year is published a "volume" divided into two issues.

Two years after his first collection was published he had yet to make a significant impression.

Every two years since then, through 2010, a new edition has been published with updated entries.

Another six years passed before the last (46th) volume was published.

In 1797, one year after the book was first published, a second edition came out.

Several years later the result was published, and soon after came another publication from the same man.