Adult male Ruddy-breasted Crake. It is transitioning from breeding to non-breeding plumage. That said, the difference isn't as dramatic as with sandpipers or plovers, so it's hard to tell — but you can see that several winter-plumage feathers have come in.

Rufous Night Heron in non-breeding plumage. The third individual of the season.

A Oriental Reed Warbler that perched in the same tree while I was watching the Ruddy-breasted Crakes.

A juvenile Japanese Sparrowhawk has been hanging around the area lately, so the birds are on alert.