Doodle's strengths include his love for his brother and the respect that he pays the dead bird, the Scarlet Ibis. He looks at the world with wonder, grateful to be alive. Doodle is very brave, defying the odds that he would not survive, even learning to walk, following his brother, wanting to be like him.
"Doodle's real strengths lie not on the level of his physical prowess, but on a more subtle inward level, to which Brother seems blind at the time the action takes place. From the beginning of his life, Doodle defies death and refuses to recognize the coffin that Daddy builds for him as his own."
His weaknesses include his physical handicap, and the limitations that it puts on him. He is not a normal child. He was born with a mental and physical handicap. Physically weak, the family expected him to die shortly after his birth. Doodle suffers from poor health as a result of his condition. His health is fragile.