In Chapter 1, near the sheep bridge where you unlock Bunny Buddies
& Black Sheep
, before crossing the bridge, make sure you head to the right of the crank on the balcony area and interact with the bird cage to set the bird free.Step 2:
During after the windpipe
achievement in Chapter 4 (near the inventor), head down towards the wind glider and use the telescope halfway down the stairs. From the starting position, aim down and to the right to find a bird sitting on a branch and then zoom in to unlock the achievement.Note:
If gaining this achievement through Chapter Select, complete the part in Chapter 1 and then continue to a checkpoint. Now back out to the main menu, and select Chapter 4 playing up until you unlock the achievement.
This achievement can be seen in the video guide at 3:19