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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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Olrog, Claës Christian
Author ID	2230
Abbrev. name	Olrog, CC
Full name	Olrog, Claës Christian
Born/Deceased	1912 - 1985
Biography	https://en.wikipedia.org/wiki/Cla%C3%ABs_Christian_Olrog
Publ. years	1949 - 1979
#Names	21
Co-authors: Contino, F;

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