Japanese white-eye and ume- bloom

Japanese apricot, ume or plum 

Plum (Ume) blossoms are often mentioned in Japanese poetry as a symbol of spring. When used in haiku or renga, they are a kigo or season word for early spring. The blossoms are associated with the Japanese Bush Warbler and depicted together on one of the twelve suits of hanafuda (Japanese playing cards). Plum blossoms were favored during the Nara period (710–794) until the emergence of the Heian period (794-1185) in which the cherry blossoms was preferred.
Japanese tradition holds that the ume functions as a protective charm against evil, so the ume is traditionally planted in the northeast of the garden, the direction from which evil is believed to come. The eating of the pickled fruit for breakfast is also supposed to stave off misfortune.         Quote from Wikipedia

I will be reminded of the music which always has an elementary school song, if the flower of a plum begins to bloom.

Although the beginning phrase of this music is ”with the twig of the ume a bush warbler" I have not seen

the bush warbler which stopped at the twig of a ume(plum).

Most of the birds stop twig of plum blossoms in spring is a Japanese white-eye.