The narrator of the scarlet ibis is

The narrator of "The Scarlet Ibis" is a the character identified or called only as "Brother".

Explanation:

James Hurst's short story "The Scarlet Ibis" is a story of a boy born with some medical condition that renders him invalid among the others. His intelligence enables him to overcome some of his challenges but in the end, he ended up being driven to death by his own brother.

The story of William Armstrong "Doodle" was told by his elder brother identified only as "Brother". He is the first person narrator of the story, recollecting his memories with his deformed brother.