Avibase - The World Bird Database

Avibase
Avibase home About Avibase Mastodon Birding webcams Compare taxonomies Avibase Flickr Group Bird of the day archives Peter's Checklist Database Avibase citations Birdlinks Trip reports
myAvibase

MyAvibase allows you to create and manage your own lifelists, and produce useful reports to help you plan your next birding excursion.
myAvibase Home Manage lifelists Manage observations myAvibase reports
Checklists

There are more than 20,000 regional checklists in Avibase, offered in 9 different taxonomies, including synonyms more than 175 languages. Each checklist can be viewed with photos shared by the birding community, and also printed as PDF checklists for field use.
Avibase checklists Compare Regions
Search
Avibase search Browse by families Browse by authors Browse by publications Avibase Taxonomic Concepts
Contribute

There are a few ways by which you can help the development of this page, such as joining the Flickr group for photos or providing translations of the site in addition languages.
Contribute to Avibase Acknowledgements Flickr group Media stats Flickr group members Media wanted Contribute a better translation
English
Change language

Bird checklist historical comparisons

You can use this page to compare any 2 historical versions of a published checklist. For example, you can use this tool to see what changes have occurred between the 6th and the 7th edition of the AOU checklist, or between the 48th and the 49th supplement. Note that cross-checklists comparisons are only available for global checklists. You also restrict the list of changes to a geographic region (e.g. a country, a province or a site) to see only changes affecting birds in a specific area.

Checklist #1

Select a checklist:

Version:

Checklist #2

Select a checklist:

Version

Show only changes affecting this continent:

then select a region:

countries only include provinces/states show all checklists

Legend
	Taxon removed. This color indicates that the taxonomic concept is only present in the first checklist. The species was either removed entirely from the list, or may have been replaced by another taxon concept (eg, following a species split or a species lump).
	Taxon added. This color indicates that the taxonomic concept is only present in the second checklist. The species was either entirely new to the checklist, or it may replace another concept (eg, following a species split or a species lump).
	Name changed. This color indicates that the taxonomic concept is the same between the 2 versions (ie, that the names refers to the same population), but that the scientific, common or family name has been modified.