This is Bird Note.

Some of Hollywood's most iconic beasts owe much of their signature sound to the squawks, tweets, and even hisses of birds.

Take Stephen Spielberg's 1993 classic.

Welcome to Jurassic Park.

To create these mournful calls from the Brockiosaurus,

sound a mournful calls from the Brockiosaurus, sound designer sound designer Gary Rydstrom

slowed down the honks of geese

What about the velociraptor's unnerving hiss?

Well, that is an angry goose.

In Jurassic World, Gen 2 and Emperor penguins also contributed to the Raptors' vocals,

giving it that playful, chittery sound.

In the prisoner of Azcaband, the hippogriff's scream is actually a limpingon,

whose high-pitched call earned the nickname The Crying Bird.

Or in the sci-fi film, Arrival.

To create the language of the aliens,

New Zealand-based sound designers David Whitehead and Michelle Child

recorded local birds and lowered their pitch.

Then added some other animals and instruments like bagpipes and didgerie-dos.

Ironically, Alfred Hitchcock didn't use any birds for the soundscape of his classic horror film, The Birds.

Instead, the sound of those murderous seagulls was made using an early synthesizer called the Trotonium.

Hitchcock claimed he couldn't find any real birds that sounded spooky enough.

That's Hollywood for you.

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