The Northern Mockingbird (Mimus polyglottos), found all over North America, is famous for imitating the songs of other birds, but also copies many sounds that are part of the human environment.

Mockingbird

by Judith Harris

I can hear him,
now, even in darkness,
a trickster under the moon,
bristling his feathers,
sounding as merry
as a man whistling in a straw hat,
or a squeaky gate
to the playground, left ajar
or the jingling of a star,
having wandered too far
from the pasture.

Lonely Mockingbird (Tanka)

by Hap Rochelle

lonely mockingbird
sits on my porch railing
singing his desire
the plaintive notes
of a blues guitar

• “Mockingbird” © 2010 by Judith Harris, printed in Narrative, Summer 2011 issue —
  http://www.poetryfoundation.org/poems-and-poets/poems/detail/54948
• “Lonely Mockingbird” — by Hap Rochelle —
  http://www.poemhunter.com/best-poems/hap-rochelle/lonely-mockingbird-tanka/