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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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Norell, Mark A.
Author ID	2191
Abbrev. name	Norell, MA
Full name	Norell, Mark A.
Biography	https://en.wikipedia.org/wiki/Mark_A._Norell
Publ. years	1993 - 2010
#Names	9
Co-authors: Brusatte, SL; Chiappe, LM; Clark, JM; Clarke, JA; Csiki, Z; Erickson, GM; Guo Y; Han F; Hone, D; Ji Q; Ji SA; Ksepka, DT; Perle, A; Smith, NA; Sullivan, C; Vremir, M; Wang Xiaolin; Xu X; Zhao Q;

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