From the World Bird Database website:
This checklist includes all bird species found in Antarctica, based on the best information available at this time. It is based on a wide variety of sources that I collated over many years. I am pleased to offer these checklists as a service to birdwatchers. If you find any error, please do not hesitate to report them.
The taxonomic order and nomenclature ... follows Clements 5th edition (updated 2004). If you prefer to view the list based on a different authority, click on one of the list available below. Globally threatened species (status in red) were identified by Birdlife International in Threatened Birds of the World (Birds to Watch 3).
Bird Checklists of the World is part of Avibase and Bird links to the World, which are designed and maintained by Denis Lepage, and hosted by Bird Studies Canada, which is a co-partner of Birdlife International.
Copyright Denis Lepage 2004
The checklist provided at the download URL below is a snapshot of bird species found in the Antarctic as of August 2004.
The fields in this dataset are: