The Japanese tit (Parus minor), also known as the Oriental tit, here he is after a bath.
I have often seen these little birds in Lions Education centre, in Sai Kung, where they compete and co-mingle with the Japanese White Eyes on the blossoming trees.
The species made headlines in March 2016, when Suzuki et al. reported in Nature Communications that they had found experimental evidence for compositional syntax in bird calls, marking the first such evidence for that type of syntax in nonhuman animals.
