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Continuity mistake: After Mitch rescues Melanie from the phone booth he places her to the left of the front door of the restaurant as he reaches to open it. In the next shot their positions change and she is in front of the door going into restaurant. (01:27:45)

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Continuity mistake: After the gull attack Deke, Carter comes around the bar twice as Melanie sits down. (00:26:45)

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Continuity mistake: As Lydia walks up to Mr. Faucet's door she takes off her right glove and puts it in her left hand. Her right hand is empty and she uses it to open the door but when she comes through the other side of the door, the glove is in her hand again. (00:59:25)

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Continuity mistake: After Mitch runs to Annie and Cathy there's a fake movable bird behind the real bird to the right of the swing. It's gone when we see Mitch carry the little girl into the house. (00:52:20)

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Continuity mistake: When Melanie starts on her journey across the bay the sun should be on her left as we saw in the way her shadow fell as she walked up to the boat keeper. A considerable amount of time must have gone by because the sun is now in front of her and to the right. (00:20:40)

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Continuity mistake: As she sits and listens to Melanie talk to Mitch on the phone Annie's right hand changes positions between shots. She starts to move it up, then in the next shot it's already leaning on her left hand. (00:45:50)

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Continuity mistake: As Melanie and the two girls get into the cream colored station wagon parked on the side of the road the upholstery on the driver's side door changes drastically between shots. (01:15:00)

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Continuity mistake: In the living room when Melanie puts the cage down, the left side extends over the edge of the seat. In the next shot as she puts the card next to it, the cage doesn't extend over the edge of the seat anymore. (00:22:25)

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Continuity mistake: As Mitch brings the little girl in the blue dress back to the house the doorknob appears between shots. (00:53:10)

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Continuity mistake: As Melanie talks about renting the apartment Annie's hair changes slightly between shots. Two little pieces of hair stick out right by her left ear that weren't there in the previous shot when she opens the door. Annie's hair changes in other consecutive shots throughout the film. (00:31:50)

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Continuity mistake: You can tell by the shadows on the wall that the headboard of Lydia's bed is pushed up further against the wall in the overhead shot. (01:04:00)

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Continuity mistake: The wire attached to the roof of the Bodega Bay School that the birds sit on as Mitch and Melanie watch was not there earlier in the movie. We see this left corner of the building up close twice earlier in the movie. The first is when Melanie drives up to Annie's and the second even better shot is when Annie stands by her mailbox as Melanie leaves. (01:29:35)

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Continuity mistake: When Melanie first shows the two birds in the cage to Mitch they change in the next shot. In the close-up they have a distinctive dark yellow patch on their tail feathers that the previous birds didn't have. (00:05:30)

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Continuity mistake: Melanie closes the door of the phone booth with her right hand pushed up against the window, and in the next shot her right hand is tucked up close to her body touching the center of the phone booth door. While inside, Melanie goes from leaning against the door to leaning against the opposite window between shots. (01:26:25)

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Continuity mistake: When Melanie walks up the dock to Mitch's house there's a tower (to the left of her head) on the far side of Bodega bay. Two shots later a sailboat appears on the other side of the bay, slightly to the left of the tower, that wasn't there before. (00:21:55)

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Continuity mistake: As Annie goes back to sit down on her couch she says, "Then one weekend he invited me up to meet Lydia". The silver box in front of the three-pronged lamp on her table moves between shots. (00:42:55)

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Continuity mistake: Annie's sweater and face go from having no sunlight on them to being in the sunlight, before she moves towards Cathy as the birds attack the party. (00:51:55)

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Continuity mistake: As Melanie rings Annie's doorbell, there's a distinct reflection in the door. Later when Annie walks up onto the porch there's no reflection in the window of the door because they've been removed. (00:16:30)

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Continuity mistake: A blond boy in a light brown shirt is attacked by a crow and goes from having no blood on his neck to having a lot of blood smeared on his neck between shots. (01:14:10)

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Continuity mistake: As Melanie approaches Mitch's house for the first time we see one single fence around the yard where the children are attacked by the birds in the party scene. Later in the movie there's a double fence there. (00:21:35 - 00:52:35)

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