daniel64,  thank you :)

ekobor,  you are certainly right :)

This chicken is spectacular

 The looping is off a bit, because the hen doesn't smoothly lower its head again, it just jumps.

Thank you for your advices )

if you want to keep the foot as it is another solution would be to rotate the whole chickens body just for that part of the animation. the stretching effect on the foot is clever.

sharprm, thanks for your comment.

I'll try to fix it.

foot going back doesn't follow the perspective.