Avibase - The World Bird Database

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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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Orr, Robert Thomas
Author ID	2248
Abbrev. name	Orr, RT
Full name	Orr, Robert Thomas
Biography
Publ. years	1954 - 1968
#Names	5
Co-authors: Rowley, JS; Webster, JD;

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