Hitchcock's masterpiece. No question.
The only movie he did without a musical score.
(He wanted people to remember the film for its content, not the music)
However, with all due respect for Hitchcock, you can tell when some of those birds attack, they are nothing more than hand puppets. Other than that, it's a fantastic movie.
Please delete this board. There's already a discussion about it elsewhere.
Hitchcock's cameo in this movie: He comes out of the pet shop, walking a dog, at the start.