Here's from another article that also shows prices in today's dollars in parentheses. On a price/lb basis, Mud-Ducks are at the bottom ( except for Sky Carp, of course )8D
http://www.theatlantic.com/food/archive/2010/12/ruddy-ducks-the-original-butterball-turkey/67472/
"These are retail market prices for ducks taken from the Currituck Sound in North Carolina in 1884:
• Pair of Canvasbacks: $1.00-2.75 ($64.83)
• Pair of Redheads: $0.50-1.60 ($37.72)
• Pair of Ruddy ducks: $0.25-0.90 ($21.22)
• Canada Goose: $0.50 ($11.79)
The price in parentheses is the modern price, adjusted for inflation. Astounding, isn't it? Also, no other species of waterfowl are listed. Then I found a 1901 restaurant menu cited in Appetite City: A Culinary History of New York from a place called Rector's that listed restaurant prices for a single cooked wild duck:
• canvasback, $4 ($101.79)
• redhead, $3 ($76.34)
• mallard, $2.50 ($63.62)
• ruddy duck, $2 ($50.89)
• teal, $1.25 ($31.81)