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Continuity mistake: As they talk to the policeman Lydia rearranges the picture of her father above the piano. In the next shot a black bird appears next to the fallen statue on the left that wasn't there before. (00:57:30)

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Continuity mistake: The tall structure on the hill behind the swing set has a lot of clouds around it. When we see it seconds later the sky is clear. (00:52:05)

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Continuity mistake: Melanie walks out from behind the desk and goes into the hallway to get the nightgown to show Annie. No one ever flicked a light switch, but the hallway is now very well lit up. (00:46:40)

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Continuity mistake: On the last leg of Melanie's journey just before she enters Bodega Bay she's driving on a dirt road, but they dub in the sound of her tires screeching on pavement as she negotiates the turns. (00:11:45)

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Continuity mistake: When Lydia says to Melanie, "Do you think Cathy's alright at the school?" the two pictures hanging above her head disappear the next time we see her. (01:03:15)

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Continuity mistake: As Mitch returns to the living room before the lights go out, there's much more wood in the pile than before when he was putting it into the fire. (01:44:05)

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Continuity mistake: As Melanie leaves Mitch's house, the barn alternates between having a blue sky behind it and having clouds behind it. (00:23:00)

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Continuity mistake: When Melanie shows Annie the nightgown she bought, there's a box directly behind Melanie's brandy glass. Now it's silver, but before it was turquoise. (00:46:55)

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Continuity mistake: As Melanie and Mitch walk down the hill Annie and Cathy are standing in the middle of the yard with two other children between them and the lounge chair. In the next shot as we see Lydia carrying the cake, the two children disappear and Annie and Cathy have moved to the left closer to the door. (00:51:35)

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Continuity mistake: After she throws up, Melanie brings Cathy back out from the bathroom and the scales on the table and the curtains behind them are very well lit. No one turned off any lights, but a few shots later when the birds start the next attack Melanie stands and the scales and curtain are in the dark. (01:40:10)

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Continuity mistake: No one touches the two yellow buoys on the end of Mitch's doc, but after Melanie leaves the birds in the house they've changed position relative to the wooden planks underneath. (00:23:10)

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Continuity mistake: Melanie hasn't been near her car since the attack on the children at the school. Now as she and Mitch pass it while walking to Annie's, we can see the front wheels have been turned all the way to the right. (01:29:50)

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Continuity mistake: As Melanie watches Mitch from out on the boat, someone opened the shades on the left lower window of the house. In the next shot as Mitch watches her with the binoculars the shades are closed again. (00:24:10)

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Continuity mistake: When the store manager shows Melanie Mitch's house, the cloud cover is different from what we just saw behind her car as she drove up to the store. (00:13:20)

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Continuity mistake: In the party scene the close-up of Melanie, Annie and Mitch together had to be shot at a totally different time. Before, the structure behind the swing set had a long shadow across its window. Now the window has no shadow on it at all. (00:52:30)

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Continuity mistake: When Melanie first reaches into her pocketbook for the card she's about a foot away from the cage. In the next shot as she puts the card against the cage her pocketbook is practically touching the seat. (00:22:25)

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Continuity mistake: After dinner with Mitch, Melanie walks into Annie's apartment and between shots the shadow of Annie's head appears out of nowhere against the wall. (00:41:05)

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Continuity mistake: As Melanie opens Mitch's front door, her pocketbook is strapped around her wrist. In the next shot, as she comes through the door, the pocketbook is up around her forearm. (00:22:10)

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Continuity mistake: After a good night's sleep, Melanie looks out the window to see Lydia drive off in the green pick-up truck. If you look at the light fixture above and to the left of her head you can see by the shadow on the wall that the lighting changes between shots. (00:58:25)

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Continuity mistake: As Melanie and Mitch approach the top of his hill he's walking in front. In the next shot she is. (00:48:10)

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