I make two wooden bird calls.
When I am making,
these performance is half in doubt.
These wood is as hard as iron,
'Sansuyu(Cornus officinalis)' tree wood.
I add some coarse kolrosing on these.
With two bird calls that I made before.
Not prepare rosin, instead billiards' chalk.
I have experience with these
that Great Tits gathered around me,
and I could look near Varied Tits' copulation.