Wagtail on bamboo

As usual I took a lot of photos in the British Museum. I couldn't use the camera in the Sicily exhibition but there was lots else to look at. I enjoyed the exhibition of Japanese Kakiemon porcelain near the main entrance, and  can't  resist blipping this bird detail from a dish made by Sakaida Kakiemon XIII in 1971. It's labelled as a wagtail but surely it is some kind of laughing-thrush?