Leafy Lark is an enemy in the form of a head of lettuce featured in Papa Louie's second adventure platformer: Papa Louie 2: When Burgers Attack. They are the largest of the three Lark species.
Players can be rewarded with the "Lettuce Chopper" badge upon defeating 100 Larks (whether it be the smaller Brussels Larks, the medium sized Lettuce Larks, or the Leafy Larks).
They fly back and forth. When hit, they fall to the ground and hop towards you. You have to hit it a second time to fully defeat it.