Why Hollywood loves to misuse loon calls. Yeah, it drives me nuts, too.
Some more they can co-opt.
While the images we see are filmed on location, many of the sounds are recorded and added to the programmes later. The sounds of animals walking, chewing food and panting, for example, are almost always recorded by human “Foley artists” in a sound studio far away from the filming location, often weeks or months later. Foley artists are specialists who produce bespoke sounds for film and television soundtracks.
The animal sounds in most nature documentaries are made by humans
Anyone surprised?