I call fake! If you look really closely, the tree on the bottom right has the same bird in it!
Other than that, looks legit. So maybe I'm wrong?
You are right in your observation. That is the famous Matterhorn "Barker Bird" installed back in 1959 to attract guests to the Matterhorn. It would speak in Swiss and at the time wore tiny Lederhosen and played an Alpenhorn twice and hour. It was the inspiration for the Tiki Room and since and been undressed and turned off. It remains as a testimony to the innovation of Walt Disney.
"As usual he's taken over the coolest spot in the house"- Father re: Orville 1963