What is the meaning of solitary loon in poem frog and nightangle?

The solitary loon is a symbol of the poet's own isolation and loneliness. He feels like he is the only one who is awake and aware of the beauty of the night, and that everyone else is asleep and oblivious to it. This sense of isolation is further emphasized by the contrast between the lively, noisy frog and the silent, solitary loon.

The loon is also a symbol of the poet's desire to escape from the world and find a place where he can be truly himself. He longs for a place where he can be free from the constraints of society and express himself without fear of judgment. In this sense, the loon is a symbol of the poet's quest for freedom and self-expression.