The long, powerful cry you likely heard in your mind’s ear when asked to imagine the call of a bald eagle is actually the call of a red-tailed hawk, whose voice Hollywood studios have been dubbing over footage of bald eagles for generations. You can immediately understand why that is when you hear the actual call of a bald eagle. There’s nothing wrong with it; it’s just not particularly… powerful. It’s a series of high-pitched squeaks that sound kind of like a seagull on helium.

There is a story the much used Hollywood "angry cat" sound effect was the result of a particularly cruel Foley artist torturing a studio moggie for hours to try and get it to screech for the 1934 horror film The Black Cat.
The cat would not make any noise, other than angry growled threats of revenge.
The Foley artist gave up, and thrust the cat out of the studio office. He experimented with making the cat noises himself, but failed miserably .
So crossed the room to open the window for a breath of air, at which point the cat leaps back in and with a cry of vengeance is mine in cat, attacked his tormentor.
Luckily the recorder was still running and gave Hollywood it's feline version of the Wilhelm Scream'