Audubon, of course, was a nature-lover who focused on studying and painting/chronicling birds all across North America. In 1905, more than 50 years after his death, the National Audubon Society formed in his honor.
Today’s Google logo doesn’t sport the interactive elements that some recent ones have had, but it’s certainly true to Audubon’s painting style.
Audubon’s biography page on the society’s website, which is the first result searchers see if they click the logo, has been offline at times overnight, no doubt from an enormous wave of unexpected traffic.