Consider the extended metaphor of the caged bird. Then, choose the figurative meaning of each quotation from the poem.

"But a bird that stalks / down his narrow cage / can seldom see through / his bars of rage"

"The caged bird sings / with a fearful trill / of things unknown / but longed for still"

A bird in a cage will be called a caged bird but Angela, the poet, wants to talk about racial equality rights. She means that black African American people used to feel caged by American white people in the 19th century. The entire theme is metaphorical ill treatment. Black people could see white people having having a normal and prosperous life but black people had restricted freedom given to them eg they could not sit on the front seats of a bus.