As you're likely well aware, Audubon magazine's namesake, John James Audubon, made paintings of birds to create what's now considered one of the first field guides. Recently, we've come across many beautiful iterations of this theme.
Here are some of those pieces of art, for your viewing pleasure:
Paper cuttings by Denise Marks
Illustration by Mark Armstrong (markarmstrongillustration.com)
Hand-blown glass by Kurt Swanson (pinkwaterglass.com)