Thanks for that, the saddle looked strange indeed
So all the juvenile Whiskered also showed bold pattern on innermost greater and medium wing coverts, might this help too?
I cannot really see a major and consistent difference in tail band, can you elaborate
But I cannot find any WWT with such a large breast patch
WWT with tail band
Oriental Bird Club Image Database : White-winged Tern ยป Chlidonias leucopterus (orientalbirdimages.org)
Oriental Bird Club Image...
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