It is bird week from the 21st -27th of October. During this week, we would like to share with you some of the wonderful rare reference books on Australian birds and the stories behind them. These books have been digitised by the Biodiversity Heritage Library and are freely available in open access. The scientific reference works showcased this week include books from 1781 through to 1931. Ornithologists used these books to describe new species found within Australia and added to the growing number of previously undescribed birds during this time.