To try to clarify, all three images (ie this last one and the previous pair, which follow an image of a Hair-crested Drongo) are surely Horornis bush warblers, and either Japanese H. diphone or Manchurian H. borealis, to use the taxonomy currently adopted by IOC and, thus, HKBWS (unless a different position is currently being taken, unilaterally). There does not appear to be an image of a Radde's Warbler here.
The bush warblers do all seem to have quite different appearance wrt their supercilia - can anyone enlighten us on what the significance of this might be?
[ Last edited by tmichael at 11/01/2015 14:44 ]
