Why did the baby bird think that its first world was small, round and blue?
The baby bird thought its first world was small, round, and blue because it lived inside an egg (shell) before hatching.
The egg is small and round in shape, and the shell appears pale blue in colour.
Since the baby bird had never seen anything beyond the shell, it believed the entire world was just that small, round, pale blue shell.
Explanation
Stanza 1 of the poem states: 'I lived first in a little house, And lived there very well, I thought the world was small and round, And made of pale, blue shell.' The bird's first home was inside an egg, and being confined within the shell, it assumed the world was limited to what it could see and experience from inside—hence small, round, and blue.
Solution Steps
The baby bird lived inside an egg (shell) before hatching.
The egg is small, round, and pale blue in colour.
The bird had never seen anything beyond the shell, so it believed the world was limited to the shell.