You'll find most of Hitchcock's films have strange endings. My parents never liked most of his endings,but for the most part, I found them kind of neat.
Also, I don't remember specifically if he was in The Birds, but Hitchcock would always appear, ever so briefly in most all of his films. It was always fun spotting him, as he had such an unmistakenable look/presence.
TIS
FYI, Although I'm guessing she made a few more movies, Tippi Hedron, who plays the female lead, never quite made it to star status. Today, she's very active in the "Animal's Rights" field.
"Mankind must put an end to war before war puts an end to mankind. War will exist until that distant day when the conscientious objector enjoys the same reputation and prestige that the warrior does today." JFK
