The structure was found in early 2002 by independent Mars researcher Wilmer Faust who was reviewing sets of publicly released images taken by NASA's Mars Global Surveyor. He identified specific avian features, including an eye, beak, tongue, leg, clawed foot and wing, as well as what he called tail feathers. He brought his research to the Cydonia Institute, which probes what may be non-naturally occurring structures on Mars. Work on the parrot formation was under way when Faust died in 2005.
NASA since released two more pictures of the area under different lighting conditions and from different angles.
The researchers say there are "no known geologic mechanisms that are capable of creating the anatomical accuracies presented in this formation," and that the "natural creation of a formation with 17 points of anatomical correctness seems to go well beyond the probability of chance."
"I know art when I see it," Haas, the sculptor in the group, told Discovery News.
Despite my nice chat with Mr. Haas, who is working on a book on the subject, I'm not convinced. We do agree on one point however: The best way to resolve the matter one way or another is to go there.
Oh, and in case you're wondering, NASA did image the site with the follow-on Mars Reconnaissance Orbiter, but it didn't include high-resolution details. Here's that view: