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This looks like one of the Paper Wasps --- Synoeca sp , possibly ,S. septentrionalis .These are sometimes called Warrior Wasps because of their aggressive nature.
This is one of the Chachalacas , either Plain or Grey-headed , it is not possible to be certain which one from this photo , I'm afraid.
This is a Spider hunting Wasp --- Pompilinae , possibly---Agenioideus sp .
One of the Tiger Herons , Bare-throated or Rufescent , it is a bit hard to tell from this image.
Many thanks Michael.
Formerly known as Scarlet-rumped Tanager .
On further investigation , I would say it is likely to be --- Nyctemera lacticinia
A juvenile Wagtail , possibly White Wagtail ,although it looks similar to a juvenile Citrine Wagtail, but I think they are rare in Japan.
This is one of the Laspis sp , either L.talayra or L.andersoni
I think this is one of the sap of Rose Mytle Lappet Moth Caterpillar --- Trabala vishnou.