The movie “Birds” comes to mind. Wait for it.

Huge flock of starlings visit the nest area. ( https://www.youtube.com/watch?v=1tv_DYT5fuc&lc=z22mdn15nzrcjzapg04t1aokgzibktrzlf24ph1skw2brk0h00410.1515170075225083 )

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