Enchanted Glass Sparrow: A Lifelike Animation

The glass bird sits on a branch, moving naturally like a sparrow. It occasionally tilts its head, attentively observing its surroundings. Subtle body turns add realism, and its wings slightly adjust as it shifts position. The beak opens briefly once, mimicking a chirp, with smooth and natural motion. Light refracts gently within the bird, creating a lively glow. All movements are quick but not abrupt, reflecting the natural behavior of a small bird.