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  1. G

    Bush Warbler ID Help, China

    Xuky, you alluded to wing formula favouring Manchurian in your OP and I concur. WF details can be difficult to assess from images but my take is WP=p4, p2=p8/9 (or p9), p3=p6/7 which, should exclude Brownish-flanked, it having a more rounded wing e.g WP=p5-6; p9 falls nearer p9. Further, the pp...
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