As an aside- has Blyth's been now been offically split into Blyth's/ Hartert's/Claudia's? Different books are calling the "same" bird different names. Is Blyth's P reguloides the commoner species in HK or P goodsoni? Also we seem to be calling it Goodson's rather than the "standard" name of Hartert's!
http://www.birdlife.org/datazone ... p;sid=32268&m=0
BirdLife states that Phylloscopus reguloides (Sibley and Monroe 1990, 1993) has been split into P. reguloides, P. claudiae and P. goodsoni following Olsson et al. (2005).
