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Continuity mistake: When Mitch is first seen sleeping on the couch, after the last attack, the red throw pillow is protruding out from behind his right shoulder. The next time he is seen from the front the pillow is totally behind his back. (01:45:25)

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Continuity mistake: After Mitch pours out their drinks on the top of the hill he holds the cap on top of the bottle down with his index finger. In the next shot he's holding the bottle further down and his index finger is around the neck on the side of the bottle. (00:48:45)

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Continuity mistake: As she's attacked in the bedroom the first scratch on Melanie's left forearm moves further up two shots later when see it again. (01:48:05)

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Continuity mistake: As Melanie and Mitch walk up the hill behind his house Bodega Bay is at very low tide with a lot of sand bars showing. When they get to the top of the hill it's high tide. (00:48:00 - 00:52:25)

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Continuity mistake: When Mitch reaches out the window to grab the shutter the curtain has been pushed all the way to the left of his shoulder and he isn't touching it. The next time we see the curtain it's covering the entire window to the left of his head. (01:41:50)

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Visible crew/equipment: The reflection of the spotlight can be seen going before them in the bottles of booze as it leads Melanie and Mitch down the bar. (01:28:00)

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Revealing mistake: Melanie has no problem taking the letter for Mitch out of her pocketbook as she places it on top of the bird cage. The crew put adhesive tape on the back of it, so she can push on the letter with her thumb to keep it in place for the close-up. (00:10:20)

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Continuity mistake: When we first see Mitch on the ladder it's resting against the 6th plank below the window. Mitch never moves it but after Melanie hands him the last piece of lumber and he climbs down it's resting against the 7th Plank. (01:34:00)

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Audio problem: As Mitch hammers the mirrored cabinet to the front door they overdub a second hammer sound over the actual sound to make it more intense. If you listen closely they don't get them all right and they miss the very first swing. (01:43:50)

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Continuity mistake: When Annie gets up and says, " I think I'll have some of that" her cigarette is half gone with a long ash on it. In the next shot as she fiddles with the brandy bottle her cigarette is brand new. (00:42:50)

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Continuity mistake: As Melanie leaves with the tea to go check on Cathy at the school the left side of Lydia's nightgown changes between shots and is no longer protruding from her sweater. (01:07:55)

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Revealing mistake: When Melanie walks into the bedroom and covers her face with their hands something is wrong with the superimposing process. It looks as though there are wires running up and down the screen as soon as the birds start flying at her. (01:47:40)

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Continuity mistake: Before Mitch rescues Melanie from the telephone booth we can see that all the fires are still burning. But in the shot of him rescuing her they forgot to add the flames out in the road behind them. (01:27:40)

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Visible crew/equipment: A large equipment shadow can be seen on Melanie and Mitch as they stop to look at the people in the restaurant hiding in the corner. (01:28:05)

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Continuity mistake: After the final attack as Mitch sleeps in the chair the tabletop and the three items on it to his left are lit up. They get much darker the next time we see them. (01:45:25)

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Continuity mistake: No one went near it, but the chair at the left of the dinner table has been pushed in right up against the table between shots. (00:54:10)

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Continuity mistake: As the birds fly out of the fireplace the silver ashtray on the table to the right of Mitch moves closer to him. (00:54:35)

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Revealing mistake: As Lydia talks on the phone Mitch walks into and out again from the kitchen and you can see his shadow fall on the drapes to the right of the dining room table. Later on Cathy goes into the kitchen and right after Mitch sits on the piano stool look closely at her shadow. Though not as prominent as Mitch's it can be seen in the same place for 20 seconds as she waits for her cue to enter the dining room. (00:34:00)

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Continuity mistake: As Mitch checks everything in the kitchen he walks past the birdcage and looks in it. Look closely at the door of the birdcage as he walks around it. At first it's closed then in the close-up it's open. (01:38:00)

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Continuity mistake: When Melanie lets the bird go, her hands are at eye level. In the next shot they're totally over her head. (00:05:55)

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