The chickens in the Chicken Run stop-motion animations have neckerchiefs or similar for similar reasons. It’s so that different heads with different expressions / mouth positions can be swapped in and out without having to change the whole chicken. The tie covers the join.
This is kind of funny if you think about it in the context of the film, or even the phrase “running around like headless chickens”.
There’s a great video explaining cartoon animal neckties: https://www.youtube.com/watch?v=XWo5aUzJ4_c
TL;DR: It’s a shortcut that allows the animators to animate the body at a lower framerate than the head (like standing still and speaking).
The chickens in the Chicken Run stop-motion animations have neckerchiefs or similar for similar reasons. It’s so that different heads with different expressions / mouth positions can be swapped in and out without having to change the whole chicken. The tie covers the join.
This is kind of funny if you think about it in the context of the film, or even the phrase “running around like headless chickens”.