Hello. I'm wondering if there is any special meaning in these underlined phrases.
And what is a jailbird parrot? Is it a kind of parrots?
Please help. Thank you.

(From the poem, What I Wish For)

If only I were a rocker.
I would write a song called "Wishful Thinking,"
A tremendous hit with my three friends
And my jailbird parrot, I should add-
See how he salsas on his trapeze?