Reference: Ornament
Birds need so much oxygen to fly that their lungs actually extend into their bones, resulting in a bird's bones being hollow. Therefore, we changed the previous idea of glass bird in the shape of ornaments, and changed the solid bird into a hollow ring bird, which is more three-dimensional and has a sense of modeling. The transparent color and the bubbles in the glass are more like the reticular structure of bird bones, which can be closer to the natural style in household occasions.