The birds are getting under the nets to the fruit trees- possible solution, a scarecrow.

Don't know how this scarecrow will go with real birds, since the paper ones seem attracted to the piano.

Honky-Tonk scarecrow.

The chicken (bird representative) seemed to know it was fake, and kept on eating the berries that had fallen down.

The dog seemed to be trying to get the scarecrows attention, by presenting it with a stick to throw.