Clever ideas, poor execution.
Moving items a short distance by clicking, is a fun idea but is far too limited here. A longer range could go a long way.
Picking up items, also clever, but difficult when walking into them pushes them away. Automatically picking up stones would be more helpful.
Jump height is ridiculous, and feels simply bizarre, it feels as if I hit a ceiling each time I jump. Seriously you could halve the jump height and it would still be more than enough for a puzzle platformer.
The chickens that appeared after killing the first bird were really hard to aim at, and move stupidly quickly, it just felt unfair and stupid.
The puzzle after the catapult makes no sense, and other than making the windmill spin, there is nothing I can do it in it seems.
A little advice for that puzzle wouldn't go amiss.
I'd like to give you 1.25 stars simply because I like what you're trying to do, and because it just about works, but the game I'm playing now does feel rather naff.