Avibase - The World Bird Database

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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.
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Scientific name	Common name	Status
Hongshanornis	Hongshanornis sp.	fossil genus (extinct)
Hongshanornis longicresta		fossil species (extinct)
Longicrusavis	Longicrusavis sp.	fossil genus (extinct)
Longicrusavis houi		fossil species (extinct)
Parahongshanornis	Parahongshanornis sp.	fossil genus (extinct)
Parahongshanornis chaoyangensis		fossil species (extinct)
Archaeornithura		fossil genus (extinct)
Archaeornithura meemannae		fossil species (extinct)