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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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van Tets, Gerard (Gerry) Frederick
Author ID	3093
Abbrev. name	van Tets, GF
Full name	van Tets, Gerard (Gerry) Frederick
Biography	https://en.wikipedia.org/wiki/Gerard_Frederick_van_Tets
Publ. years	1974 - 1994
#Names	7
Co-authors: Davidson, PM; Fullagar, PJ; Marino-Hadiwardoyo, HR; Meredith, CW; O'Connor, JK; Vickers-Rich, PA;

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