The tone in the scene where the Scarlet Ibis falls from the tree is very sorrowful. Doodle is affected the most and he feels that this is going to be his future since they have qualities that are alike; such as they are both crippled in some way and will both probably inevitably die.
"Half-empty flour sack" This word choice describes how Doodle fell when his brother first picked him up to teach him how to walk. He fell straight down without any support of his legs at all.
"We shaded our eyes with our hands against the hazy glare of the sun and peered up through the still leaves. On the topmost branch a bird the size of a chicken, with scarlet feathers and long legs, was perched precariously." In this scene the imagery describes how the bird is seen by the older brother and Doodle. The importance of this scene is that Doodle figures out how alike he and the Scarlet Ibis are; Doodle becomes scared and anxious that his future will be similar to the bird's.
The author's style is that he is the narrator; in the story, he introduces himself in the beginning and he tells the story in a flashback style to explain events and tell the story of his little brother Doodle.
The theme of the story is that the fragile should be protected but also believed in. Doodle is extremely fragile but without belief from his brother and family he might not be alive. His brother helped him learn to walk