Although Brown Creepers are common all over the United States, I've never seen one. I researched them on eBird and Audubon.org. (Check out this article on bird camouflage; there are several amazing photos of birds blending into their surroundings, and if you scroll down you'll see a Brown Creeper - or, I should say, you'll have trouble seeing one.)
I decided to write a tanka about the Brown Creeper.
Photo Source: eBird
Dinnertime for the Brown Creeper
Crawls up tree like moving bark
Passes nuthatch crawling down,
Fellow guest at bug buffet.
©Ruth Bowen Hersey