Why does doodle care for The Scarlet Ibis so much?

Doodle cares for the Scarlet Ibis because it symbolizes his own fragility and uniqueness. The bird's struggle to survive in an environment that is not conducive to its well-being resonates with Doodle's own physical limitations and vulnerabilities. When the ibis dies, it serves as a poignant reminder of Doodle's fragility, deepening his emotional connection to the bird and highlighting the themes of beauty and loss in the story.