Very frustrating.
I did NOT enjoy all the pixel-hunting I had to do. And on top of that I did not like how cryptic and vague most of the puzzles were, especially the bonus bird puzzle. Seriously, most of the time it was sheer dumb luck when you found something, or you moved your cursor over every damn part of the screen until you found it by the process of elimination. The less vague puzzles were okay, but there aren't very many of them. The game had a creative atmosphere, but that did NOT make up for the gameplay at ALL.