Mynah-bird on a branch of flowering plum

The traditional theme for Chinese painting - the birds, the return of spring and the joy of being.
Image of wild plum is a symbol of the end of winter.
A little explanation.
Calligraphy is also traditional, with no cleverness - "Spring has come, the birds are singing, grass fragrance." Simple and clean.
Next to the text - an oval seal with two characters - "Sing a song."
Bottom right – author seal.