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Message: <blockquote data-quote="Richard Klim" data-source="post: 1394655" data-attributes="member: 773">Well, these days it's a very mixed bag, and it's instructive to conduct a quick review.  North American field guides (eg National Geographic & Sibley) of course follow the long-established AOU sequence, which treats the passerines very differently to Voous.In Asia, several major guides follow the radical Sibley & Monroe sequence, which is completely alien to anyone used to Voous.  These include guides to the Indian Subcontinent (Grimmett et al, and all its derivative titles), China (MacKinnon & Phillipps) and South-east Asia (Robson). The most recent South Asia guide (Rasmussen & Anderton) has reverted to using Peters's sequence (traditionally used in India), which is consistent with Voous for the non-passerines.The Korean field guide (Lee et al) also follows Peters, whilst the Japan guide (WBSJ) follows the common Japanese practice of covering all water birds before all land birds.So like it or not, at least within North America and Eurasia, field guides using the old Voous sequence are now limited to those covering Europe and the Middle East, making Voous an unlikely choice for an all-new East Asia guide.Richard</blockquote>