Where can I find the right combination for these pillars in Shroud Hearth Barrow?

Take a look at this video from youtube: Shroud Hearth Barrow. The interesting part starts around 6:00. The door from the screenshot seems unlocked, and in the room behind that door is the answer. The right combination from right to left is: "Whale, Hawk, Snake, Whale". This will lower the bridge.