Here is the full list of all 33 Cabela's North American Adventures achievements worth 1,000 gamerscore.
Made at least 3 Awesome Duck calls
Downed a trophy with a fully customized firearm
All your rifles and shotguns in the Gun Builder are made up from unlocked parts
Downed at least one Albino Elk
Downed at least one Albino Deer
Hunted 2 toms
Unlocked all the paint schemes in the game
Unlocked all the barrels in the game
Unlocked all custom gun parts in the game
Unlocked all the receivers in the game
Unlocked all muzzle brakes in the game
Downed at least 40 ducks
Finished the Career on Sportsman difficulty setting
Unlocked all the scopes in the game
Unlocked all the stocks in the game
Filmed at least 2 episodes worth more than 100 points
Hunted at least 10 pheasants
Taken down at least 3 trophies from a Blind
Downed 5 trophies with one shot each
Successfully completed your first episode
Finished your first hunting mission
Obtained Gold medals in all Prairie Dog Shoot Courses
Used at least 4 different Perks against opponents in an Online Match
Finished an Online Match with at least 70% Accuracy
Hunted a Big Game Trophy from more than 80 yards
Killed an animal wounded by an opponent during an Online Match
Shoot down at least 10 different big-game species with a custom rifle
Obtain Gold medals in all Hunters Challenge Courses
Find 10 animal tracks
Obtain Gold medals for all Courses in the Shooting Galleries
Finish the Career on Pro Hunter difficulty setting
Use at least 8 different Perks against opponents in an Online Match
Complete 5 collected objectives in Online Matches