MCreator chicken model not working properly

I created a custom chicken in my mod so i used the entity base of the chicken and the chicken model given by MCreator. However this one is not working properly, in fact the chicken is constantly rotating its wings with circular movements; the wings look detached from the main body and they fall into the chicken's body. I'd like you guys to fix this becuase it's quite tricky to create a custom model for the chicken AND the animations for the wings, since every animation given by MCreator eventually makes the wings fall into the chicken's body