Shoko was very particular about the sketch of birds, saying that "birds cannot be drawn without the understanding of the way they live," thus he traveled India, Australia, Southeast Asia for observing birds.
鳥の写生には強いこだわりを持っており、「鳥の生活を理解しなければ、鳥は描けない」と言い、鳥の観察の為にインドやオーストラリア、東南アジア等を旅行した。